1010120220021 has 32 divisors (see below), whose sum is σ = 1488037478400. Its totient is φ = 604374338880.

The previous prime is 1010120219993. The next prime is 1010120220079. The reversal of 1010120220021 is 1200220210101.

It is not a de Polignac number, because 1010120220021 - 2¹³ = 1010120211829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010120219979 and 1010120220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010120220091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30013215 + ... + 30046851.

It is an arithmetic number, because the mean of its divisors is an integer number (46501171200).

Almost surely, 2^{1010120220021} is an apocalyptic number.

1010120220021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1010120220021 is a deficient number, since it is larger than the sum of its proper divisors (477917258379).

1010120220021 is a wasteful number, since it uses less digits than its factorization.

1010120220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45249.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1010120220021 its reverse (1200220210101), we get a palindrome (2210340430122).

The spelling of 1010120220021 in words is "one trillion, ten billion, one hundred twenty million, two hundred twenty thousand, twenty-one".