121021020022 has 16 divisors (see below), whose sum is σ = 207469128960. Its totient is φ = 51865020648.

The previous prime is 121021020019. The next prime is 121021020031. The reversal of 121021020022 is 220020120121.

It is a happy number.

It is a super-3 number, since 3×121021020022³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121021019984 and 121021020011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049629 + ... + 1159207.

It is an arithmetic number, because the mean of its divisors is an integer number (12966820560).

Almost surely, 2^121021020022 is an apocalyptic number.

121021020022 is a deficient number, since it is larger than the sum of its proper divisors (86448108938).

121021020022 is a wasteful number, since it uses less digits than its factorization.

121021020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188475.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121021020022 its reverse (220020120121), we get a palindrome (341041140143).

The spelling of 121021020022 in words is "one hundred twenty-one billion, twenty-one million, twenty thousand, twenty-two".