2201101021212 has 24 divisors (see below), whose sum is σ = 5166656294016. Its totient is φ = 729306924528.

The previous prime is 2201101021199. The next prime is 2201101021213. The reversal of 2201101021212 is 2121201011022.

It is a junction number, because it is equal to n+sod(n) for n = 2201101021191 and 2201101021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201101021213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549174898 + ... + 549178905.

It is an arithmetic number, because the mean of its divisors is an integer number (215277345584).

Almost surely, 2^{2201101021212} is an apocalyptic number.

It is an amenable number.

2201101021212 is an abundant number, since it is smaller than the sum of its proper divisors (2965555272804).

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

2201101021212 is a wasteful number, since it uses less digits than its factorization.

2201101021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098353977 (or 1098353975 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2201101021212 its reverse (2121201011022), we get a palindrome (4322302032234).

The spelling of 2201101021212 in words is "two trillion, two hundred one billion, one hundred one million, twenty-one thousand, two hundred twelve".