121220022 has 48 divisors (see below), whose sum is σ = 307668672. Its totient is φ = 31484880.

The previous prime is 121220017. The next prime is 121220023. The reversal of 121220022 is 220022121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220023) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 15508 + ... + 21975.

It is an arithmetic number, because the mean of its divisors is an integer number (6409764).

Almost surely, 2^121220022 is an apocalyptic number.

121220022 is an abundant number, since it is smaller than the sum of its proper divisors (186448650).

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

121220022 is a wasteful number, since it uses less digits than its factorization.

121220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37513 (or 37506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 121220022 is about 11009.9964577651. The cubic root of 121220022 is about 494.9083556490.

Adding to 121220022 its reverse (220022121), we get a palindrome (341242143).

It can be divided in two parts, 121 and 220022, that multiplied together give a palindrome (26622662).

The spelling of 121220022 in words is "one hundred twenty-one million, two hundred twenty thousand, twenty-two".