211212000022101 has 32 divisors (see below), whose sum is σ = 315768858666240. Its totient is φ = 124727659660800.

The previous prime is 211212000022097. The next prime is 211212000022141. The reversal of 211212000022101 is 101220000212112.

It is not a de Polignac number, because 211212000022101 - 2² = 211212000022097 is a prime.

It is a super-2 number, since 2×211212000022101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212000022141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1082607841 + ... + 1082802918.

It is an arithmetic number, because the mean of its divisors is an integer number (9867776833320).

Almost surely, 2^{211212000022101} is an apocalyptic number.

It is an amenable number.

211212000022101 is a deficient number, since it is larger than the sum of its proper divisors (104556858644139).

211212000022101 is a wasteful number, since it uses less digits than its factorization.

211212000022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165410877.

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

Adding to 211212000022101 its reverse (101220000212112), we get a palindrome (312432000234213).

The spelling of 211212000022101 in words is "two hundred eleven trillion, two hundred twelve billion, twenty-two thousand, one hundred one".