200121111022 has 32 divisors (see below), whose sum is σ = 343929719808. Its totient is φ = 85550121216.

The previous prime is 200121111019. The next prime is 200121111023. The reversal of 200121111022 is 220111121002.

It is a junction number, because it is equal to n+sod(n) for n = 200121110993 and 200121111011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121111023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18109903 + ... + 18120949.

It is an arithmetic number, because the mean of its divisors is an integer number (10747803744).

Almost surely, 2^200121111022 is an apocalyptic number.

200121111022 is a deficient number, since it is larger than the sum of its proper divisors (143808608786).

200121111022 is a wasteful number, since it uses less digits than its factorization.

200121111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14200.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200121111022 its reverse (220111121002), we get a palindrome (420232232024).

The spelling of 200121111022 in words is "two hundred billion, one hundred twenty-one million, one hundred eleven thousand, twenty-two".