2101211331000 has 64 divisors (see below), whose sum is σ = 6555779362080. Its totient is φ = 560323020800.

The previous prime is 2101211330989. The next prime is 2101211331047. The reversal of 2101211331000 is 1331121012.

It is a happy number.

It is a super-2 number, since 2×2101211331000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350198889 + ... + 350204888.

Almost surely, 2^{2101211331000} is an apocalyptic number.

2101211331000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101211331000 is an abundant number, since it is smaller than the sum of its proper divisors (4454568031080).

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

2101211331000 is a wasteful number, since it uses less digits than its factorization.

2101211331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700403801 (or 700403787 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 2101211331000 its reverse (1331121012), we get a palindrome (2102542452012).

The spelling of 2101211331000 in words is "two trillion, one hundred one billion, two hundred eleven million, three hundred thirty-one thousand".