211000020121100 has 144 divisors (see below), whose sum is σ = 552868776633600. Its totient is φ = 68280565489920.

The previous prime is 211000020121069. The next prime is 211000020121123. The reversal of 211000020121100 is 1121020000112.

It is a super-2 number, since 2×211000020121100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25910522 + ... + 33065921.

It is an arithmetic number, because the mean of its divisors is an integer number (3839366504400).

Almost surely, 2^{211000020121100} is an apocalyptic number.

211000020121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211000020121100 is an abundant number, since it is smaller than the sum of its proper divisors (341868756512500).

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

211000020121100 is a wasteful number, since it uses less digits than its factorization.

211000020121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58976752 (or 58976745 counting only the distinct ones).

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

Adding to 211000020121100 its reverse (1121020000112), we get a palindrome (212121040121212).

The spelling of 211000020121100 in words is "two hundred eleven trillion, twenty million, one hundred twenty-one thousand, one hundred".