211212010210100 has 72 divisors (see below), whose sum is σ = 478428216009408. Its totient is φ = 80782698304000.

The previous prime is 211212010210099. The next prime is 211212010210139. The reversal of 211212010210100 is 1012010212112.

It is a super-2 number, since 2×211212010210100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 9950294 + ... + 22834893.

It is an arithmetic number, because the mean of its divisors is an integer number (6644836333464).

Almost surely, 2^{211212010210100} is an apocalyptic number.

211212010210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211212010210100 is an abundant number, since it is smaller than the sum of its proper divisors (267216205799308).

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

211212010210100 is a wasteful number, since it uses less digits than its factorization.

211212010210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32788025 (or 32788018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211212010210100 its reverse (1012010212112), we get a palindrome (212224020422212).

The spelling of 211212010210100 in words is "two hundred eleven trillion, two hundred twelve billion, ten million, two hundred ten thousand, one hundred".