20022121211112 has 64 divisors (see below), whose sum is σ = 55777283121600. Its totient is φ = 6654806832960.

The previous prime is 20022121211093. The next prime is 20022121211179. The reversal of 20022121211112 is 21111212122002.

20022121211112 is a `hidden beast` number, since 200 + 22 + 121 + 211 + 112 = 666.

It is a super-2 number, since 2×20022121211112² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133491339 + ... + 133641242.

It is an arithmetic number, because the mean of its divisors is an integer number (871520048775).

Almost surely, 2^{20022121211112} is an apocalyptic number.

It is an amenable number.

20022121211112 is an abundant number, since it is smaller than the sum of its proper divisors (35755161910488).

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

20022121211112 is a wasteful number, since it uses less digits than its factorization.

20022121211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267132943 (or 267132933 counting only the distinct ones).

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

Adding to 20022121211112 its reverse (21111212122002), we get a palindrome (41133333333114).

The spelling of 20022121211112 in words is "twenty trillion, twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, one hundred twelve".