2111021021000 has 64 divisors (see below), whose sum is σ = 4940370938880. Its totient is φ = 844308964800.

The previous prime is 2111021020967. The next prime is 2111021021003. The reversal of 2111021021000 is 1201201112.

It is a super-2 number, since 2×2111021021000² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111021021003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8683097 + ... + 8922903.

It is an arithmetic number, because the mean of its divisors is an integer number (77193295920).

Almost surely, 2^{2111021021000} is an apocalyptic number.

2111021021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111021021000 is an abundant number, since it is smaller than the sum of its proper divisors (2829349917880).

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

2111021021000 is a wasteful number, since it uses less digits than its factorization.

2111021021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248631 (or 248617 counting only the distinct ones).

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

Adding to 2111021021000 its reverse (1201201112), we get a palindrome (2112222222112).

The spelling of 2111021021000 in words is "two trillion, one hundred eleven billion, twenty-one million, twenty-one thousand".