2131140101220 has 120 divisors (see below), whose sum is σ = 7199732071224. Its totient is φ = 524588327424.

The previous prime is 2131140101201. The next prime is 2131140101261. The reversal of 2131140101220 is 221010411312.

It can be written as a sum of positive squares in 4 ways, for example, as 69291085824 + 2061849015396 = 263232^2 + 1435914^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2131140101193 and 2131140101202.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 50575809 + ... + 50617928.

Almost surely, 2^{2131140101220} is an apocalyptic number.

2131140101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131140101220 is an abundant number, since it is smaller than the sum of its proper divisors (5068591970004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131140101220 is a wasteful number, since it uses less digits than its factorization.

2131140101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101193771 (or 101193760 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2131140101220 its reverse (221010411312), we get a palindrome (2352150512532).

The spelling of 2131140101220 in words is "two trillion, one hundred thirty-one billion, one hundred forty million, one hundred one thousand, two hundred twenty".