121021110222 has 32 divisors (see below), whose sum is σ = 250788908160. Its totient is φ = 38908390560.

The previous prime is 121021110187. The next prime is 121021110227. The reversal of 121021110222 is 222011120121.

It is a super-2 number, since 2×121021110222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021110227) 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, 3206404 + ... + 3243927.

It is an arithmetic number, because the mean of its divisors is an integer number (7837153380).

Almost surely, 2^121021110222 is an apocalyptic number.

121021110222 is an abundant number, since it is smaller than the sum of its proper divisors (129767797938).

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

121021110222 is a wasteful number, since it uses less digits than its factorization.

121021110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6450448.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121021110222 its reverse (222011120121), we get a palindrome (343032230343).

The spelling of 121021110222 in words is "one hundred twenty-one billion, twenty-one million, one hundred ten thousand, two hundred twenty-two".