121002021222 has 16 divisors (see below), whose sum is σ = 242010504000. Its totient is φ = 40332930152.

The previous prime is 121002021209. The next prime is 121002021223. The reversal of 121002021222 is 222120200121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002021223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5988 + ... + 491975.

It is an arithmetic number, because the mean of its divisors is an integer number (15125656500).

Almost surely, 2^121002021222 is an apocalyptic number.

121002021222 is an abundant number, since it is smaller than the sum of its proper divisors (121008482778).

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

121002021222 is a wasteful number, since it uses less digits than its factorization.

121002021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538467.

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

Adding to 121002021222 its reverse (222120200121), we get a palindrome (343122221343).

The spelling of 121002021222 in words is "one hundred twenty-one billion, two million, twenty-one thousand, two hundred twenty-two".