2100011021010 has 48 divisors (see below), whose sum is σ = 6240032750016. Its totient is φ = 480002518944.

The previous prime is 2100011020981. The next prime is 2100011021033. The reversal of 2100011021010 is 101201100012.

It is a happy number.

It is a super-2 number, since 2×2100011021010² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2100011020983 and 2100011021001.

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, 1666674784 + ... + 1666676043.

It is an arithmetic number, because the mean of its divisors is an integer number (130000682292).

Almost surely, 2^{2100011021010} is an apocalyptic number.

2100011021010 is an abundant number, since it is smaller than the sum of its proper divisors (4140021729006).

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

2100011021010 is a wasteful number, since it uses less digits than its factorization.

2100011021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333350847 (or 3333350844 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2100011021010 its reverse (101201100012), we get a palindrome (2201212121022).

The spelling of 2100011021010 in words is "two trillion, one hundred billion, eleven million, twenty-one thousand, ten".