121100201022 has 64 divisors (see below), whose sum is σ = 250337170944. Its totient is φ = 39025203840.

The previous prime is 121100201003. The next prime is 121100201039. The reversal of 121100201022 is 220102001121.

It is a junction number, because it is equal to n+sod(n) for n = 121100200989 and 121100201007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34333423 + ... + 34336949.

It is an arithmetic number, because the mean of its divisors is an integer number (3911518296).

Almost surely, 2^121100201022 is an apocalyptic number.

121100201022 is an abundant number, since it is smaller than the sum of its proper divisors (129236969922).

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

121100201022 is a wasteful number, since it uses less digits than its factorization.

121100201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121100201022 its reverse (220102001121), we get a palindrome (341202202143).

The spelling of 121100201022 in words is "one hundred twenty-one billion, one hundred million, two hundred one thousand, twenty-two".