2121202211022 has 12 divisors (see below), whose sum is σ = 4595938123920. Its totient is φ = 707067403668.

The previous prime is 2121202211017. The next prime is 2121202211057. The reversal of 2121202211022 is 2201122021212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 117844567279 = 2121202211022 / (2 + 1 + 2 + 1 + 2 + 0 + 2 + 2 + 1 + 1 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2121202210986 and 2121202211004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58922283622 + ... + 58922283657.

It is an arithmetic number, because the mean of its divisors is an integer number (382994843660).

Almost surely, 2^{2121202211022} is an apocalyptic number.

2121202211022 is an abundant number, since it is smaller than the sum of its proper divisors (2474735912898).

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

2121202211022 is a wasteful number, since it uses less digits than its factorization.

2121202211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117844567287 (or 117844567284 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2121202211022 its reverse (2201122021212), we get a palindrome (4322324232234).

The spelling of 2121202211022 in words is "two trillion, one hundred twenty-one billion, two hundred two million, two hundred eleven thousand, twenty-two".