212022001221112 has 32 divisors (see below), whose sum is σ = 418469198400000. Its totient is φ = 100430340909408.

The previous prime is 212022001221083. The next prime is 212022001221181. The reversal of 212022001221112 is 211122100220212.

It is a super-2 number, since 2×212022001221112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 212022001221112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5720139 + ... + 21372037.

It is an arithmetic number, because the mean of its divisors is an integer number (13077162450000).

Almost surely, 2^{212022001221112} is an apocalyptic number.

It is an amenable number.

212022001221112 is a deficient number, since it is larger than the sum of its proper divisors (206447197178888).

212022001221112 is a wasteful number, since it uses less digits than its factorization.

212022001221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15741043 (or 15741039 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212022001221112 its reverse (211122100220212), we get a palindrome (423144101441324).

The spelling of 212022001221112 in words is "two hundred twelve trillion, twenty-two billion, one million, two hundred twenty-one thousand, one hundred twelve".