121220010222 has 24 divisors (see below), whose sum is σ = 255871605096. Its totient is φ = 38280002544.

The previous prime is 121220010193. The next prime is 121220010227. The reversal of 121220010222 is 222010022121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220010227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27980293 + ... + 27984624.

It is an arithmetic number, because the mean of its divisors is an integer number (10661316879).

Almost surely, 2^121220010222 is an apocalyptic number.

121220010222 is an abundant number, since it is smaller than the sum of its proper divisors (134651594874).

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

121220010222 is a wasteful number, since it uses less digits than its factorization.

121220010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55964960 (or 55964941 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121220010222 its reverse (222010022121), we get a palindrome (343230032343).

The spelling of 121220010222 in words is "one hundred twenty-one billion, two hundred twenty million, ten thousand, two hundred twenty-two".