2021021102 has 16 divisors (see below), whose sum is σ = 3082741200. Its totient is φ = 993582720.

The previous prime is 2021021087. The next prime is 2021021111. The reversal of 2021021102 is 2011201202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6827 + ... + 63942.

It is an arithmetic number, because the mean of its divisors is an integer number (192671325).

Almost surely, 2^2021021102 is an apocalyptic number.

2021021102 is a deficient number, since it is larger than the sum of its proper divisors (1061720098).

2021021102 is a wasteful number, since it uses less digits than its factorization.

2021021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71011.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2021021102 is about 44955.7682839477. The cubic root of 2021021102 is about 1264.3198293210.

Adding to 2021021102 its reverse (2011201202), we get a palindrome (4032222304).

The spelling of 2021021102 in words is "two billion, twenty-one million, twenty-one thousand, one hundred two".