2101513553220 has 48 divisors (see below), whose sum is σ = 5917110816960. Its totient is φ = 557272864896.

The previous prime is 2101513553213. The next prime is 2101513553231. The reversal of 2101513553220 is 223553151012.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97825087 + ... + 97846566.

It is an arithmetic number, because the mean of its divisors is an integer number (123273142020).

Almost surely, 2^{2101513553220} is an apocalyptic number.

2101513553220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101513553220 is an abundant number, since it is smaller than the sum of its proper divisors (3815597263740).

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

2101513553220 is a wasteful number, since it uses less digits than its factorization.

2101513553220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195671844 (or 195671842 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 2101513553220 in words is "two trillion, one hundred one billion, five hundred thirteen million, five hundred fifty-three thousand, two hundred twenty".