212122012101102 has 72 divisors (see below), whose sum is σ = 472757263102800. Its totient is φ = 68737275129600.

The previous prime is 212122012101079. The next prime is 212122012101113. The reversal of 212122012101102 is 201101210221212.

212122012101102 is a `hidden beast` number, since 2 + 121 + 220 + 1 + 210 + 110 + 2 = 666.

It is a super-2 number, since 2×212122012101102² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3971602 + ... + 20976597.

It is an arithmetic number, because the mean of its divisors is an integer number (6566073098650).

Almost surely, 2^{212122012101102} is an apocalyptic number.

212122012101102 is an abundant number, since it is smaller than the sum of its proper divisors (260635251001698).

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

212122012101102 is a wasteful number, since it uses less digits than its factorization.

212122012101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24948570 (or 24948526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212122012101102 its reverse (201101210221212), we get a palindrome (413223222322314).

The spelling of 212122012101102 in words is "two hundred twelve trillion, one hundred twenty-two billion, twelve million, one hundred one thousand, one hundred two".