121031002211220 has 72 divisors (see below), whose sum is σ = 367190122659360. Its totient is φ = 32269417502400.

The previous prime is 121031002211191. The next prime is 121031002211237. The reversal of 121031002211220 is 22112200130121.

121031002211220 is a `hidden beast` number, since 1 + 2 + 10 + 310 + 0 + 221 + 122 + 0 = 666.

121031002211220 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 = 121031002211193 and 121031002211202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56406610 + ... + 58512969.

Almost surely, 2^{121031002211220} is an apocalyptic number.

121031002211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121031002211220 is an abundant number, since it is smaller than the sum of its proper divisors (246159120448140).

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

121031002211220 is a wasteful number, since it uses less digits than its factorization.

121031002211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114925445 (or 114925440 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121031002211220 its reverse (22112200130121), we get a palindrome (143143202341341).

The spelling of 121031002211220 in words is "one hundred twenty-one trillion, thirty-one billion, two million, two hundred eleven thousand, two hundred twenty".