211233101020 has 24 divisors (see below), whose sum is σ = 446975697168. Its totient is φ = 83848252800.

The previous prime is 211233100999. The next prime is 211233101039. The reversal of 211233101020 is 20101332112.

It is a junction number, because it is equal to n+sod(n) for n = 211233100985 and 211233101003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40309041 + ... + 40314280.

It is an arithmetic number, because the mean of its divisors is an integer number (18623987382).

Almost surely, 2^211233101020 is an apocalyptic number.

211233101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211233101020 is an abundant number, since it is smaller than the sum of its proper divisors (235742596148).

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

211233101020 is a wasteful number, since it uses less digits than its factorization.

211233101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80623461 (or 80623459 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211233101020 its reverse (20101332112), we get a palindrome (231334433132).

The spelling of 211233101020 in words is "two hundred eleven billion, two hundred thirty-three million, one hundred one thousand, twenty".