1021101020120 has 16 divisors (see below), whose sum is σ = 2297477295360. Its totient is φ = 408440408032.

The previous prime is 1021101020119. The next prime is 1021101020141. The reversal of 1021101020120 is 210201011201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12763762712 + ... + 12763762791.

It is an arithmetic number, because the mean of its divisors is an integer number (143592330960).

Almost surely, 2^{1021101020120} is an apocalyptic number.

1021101020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021101020120 is an abundant number, since it is smaller than the sum of its proper divisors (1276376275240).

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

1021101020120 is a wasteful number, since it uses less digits than its factorization.

1021101020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25527525514 (or 25527525510 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021101020120 its reverse (210201011201), we get a palindrome (1231302031321).

The spelling of 1021101020120 in words is "one trillion, twenty-one billion, one hundred one million, twenty thousand, one hundred twenty".