211202011220100 has 72 divisors (see below), whose sum is σ = 611085383115648. Its totient is φ = 56319839184000.

The previous prime is 211202011220089. The next prime is 211202011220111. The reversal of 211202011220100 is 1022110202112.

It is an interprime number because it is at equal distance from previous prime (211202011220089) and next prime (211202011220111).

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

It is a self number, because there is not a number n which added to its sum of digits gives 211202011220100.

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, 20148942 + ... + 28781658.

Almost surely, 2^{211202011220100} is an apocalyptic number.

211202011220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211202011220100 is an abundant number, since it is smaller than the sum of its proper divisors (399883371895548).

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

211202011220100 is a wasteful number, since it uses less digits than its factorization.

211202011220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8714285 (or 8714278 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211202011220100 its reverse (1022110202112), we get a palindrome (212224121422212).

The spelling of 211202011220100 in words is "two hundred eleven trillion, two hundred two billion, eleven million, two hundred twenty thousand, one hundred".