202122121111011 has 48 divisors (see below), whose sum is σ = 305777009760768. Its totient is φ = 133408696140000.

The previous prime is 202122121110989. The next prime is 202122121111021. The reversal of 202122121111011 is 110111121221202.

It is a happy number.

It is not a de Polignac number, because 202122121111011 - 2¹⁵ = 202122121078243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202122121111021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 682810086 + ... + 683106036.

It is an arithmetic number, because the mean of its divisors is an integer number (6370354370016).

Almost surely, 2^{202122121111011} is an apocalyptic number.

202122121111011 is a deficient number, since it is larger than the sum of its proper divisors (103654888649757).

202122121111011 is a wasteful number, since it uses less digits than its factorization.

202122121111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323894 (or 323882 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 202122121111011 its reverse (110111121221202), we get a palindrome (312233242332213).

The spelling of 202122121111011 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred eleven thousand, eleven".