211222012110100 has 72 divisors (see below), whose sum is σ = 464199983619008. Its totient is φ = 83415748838400.

The previous prime is 211222012110079. The next prime is 211222012110127. The reversal of 211222012110100 is 1011210222112.

It is a super-2 number, since 2×211222012110100² (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, 27568029 + ... + 34386628.

Almost surely, 2^{211222012110100} is an apocalyptic number.

211222012110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211222012110100 is an abundant number, since it is smaller than the sum of its proper divisors (252977971508908).

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

211222012110100 is a wasteful number, since it uses less digits than its factorization.

211222012110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61955105 (or 61955098 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211222012110100 its reverse (1011210222112), we get a palindrome (212233222332212).

The spelling of 211222012110100 in words is "two hundred eleven trillion, two hundred twenty-two billion, twelve million, one hundred ten thousand, one hundred".