122121102121020 has 120 divisors (see below), whose sum is σ = 383621068590144. Its totient is φ = 32521199048064.

The previous prime is 122121102120949. The next prime is 122121102121069. The reversal of 122121102121020 is 20121201121221.

122121102121020 is a `hidden beast` number, since 1 + 221 + 211 + 0 + 2 + 1 + 210 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122121102120984 and 122121102121002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 50233684 + ... + 52608603.

Almost surely, 2^{122121102121020} is an apocalyptic number.

122121102121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122121102121020 is an abundant number, since it is smaller than the sum of its proper divisors (261499966469124).

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

122121102121020 is a wasteful number, since it uses less digits than its factorization.

122121102121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102843041 (or 102843030 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122121102121020 its reverse (20121201121221), we get a palindrome (142242303242241).

The spelling of 122121102121020 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, twenty".