121001012022 has 32 divisors (see below), whose sum is σ = 266616105984. Its totient is φ = 36303932000.

The previous prime is 121001012009. The next prime is 121001012029. The reversal of 121001012022 is 220210100121.

It is a junction number, because it is equal to n+sod(n) for n = 121001011989 and 121001012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001012029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9069318 + ... + 9082649.

It is an arithmetic number, because the mean of its divisors is an integer number (8331753312).

Almost surely, 2^121001012022 is an apocalyptic number.

121001012022 is an abundant number, since it is smaller than the sum of its proper divisors (145615093962).

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

121001012022 is a wasteful number, since it uses less digits than its factorization.

121001012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18152084.

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

Adding to 121001012022 its reverse (220210100121), we get a palindrome (341211112143).

The spelling of 121001012022 in words is "one hundred twenty-one billion, one million, twelve thousand, twenty-two".