121021022221022 has 128 divisors (see below), whose sum is σ = 237137033825280. Its totient is φ = 44954998133760.

The previous prime is 121021022220977. The next prime is 121021022221117. The reversal of 121021022221022 is 220122220120121.

It is a super-2 number, since 2×121021022221022² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121021022220985 and 121021022221003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104649908 + ... + 105800024.

It is an arithmetic number, because the mean of its divisors is an integer number (1852633076760).

Almost surely, 2^{121021022221022} is an apocalyptic number.

121021022221022 is a deficient number, since it is larger than the sum of its proper divisors (116116011604258).

121021022221022 is a wasteful number, since it uses less digits than its factorization.

121021022221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150546.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121021022221022 its reverse (220122220120121), we get a palindrome (341143242341143).

The spelling of 121021022221022 in words is "one hundred twenty-one trillion, twenty-one billion, twenty-two million, two hundred twenty-one thousand, twenty-two".