202121101222 has 16 divisors (see below), whose sum is σ = 306222346944. Its totient is φ = 100047240000.

The previous prime is 202121101219. The next prime is 202121101277. The reversal of 202121101222 is 222101121202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202121101196 and 202121101205.

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, 1643722 + ... + 1762402.

It is an arithmetic number, because the mean of its divisors is an integer number (19138896684).

Almost surely, 2^202121101222 is an apocalyptic number.

202121101222 is a deficient number, since it is larger than the sum of its proper divisors (104101245722).

202121101222 is a wasteful number, since it uses less digits than its factorization.

202121101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127215.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202121101222 its reverse (222101121202), we get a palindrome (424222222424).

The spelling of 202121101222 in words is "two hundred two billion, one hundred twenty-one million, one hundred one thousand, two hundred twenty-two".