20022112021222 has 16 divisors (see below), whose sum is σ = 33473499974640. Its totient is φ = 8926266659328.

The previous prime is 20022112021181. The next prime is 20022112021231. The reversal of 20022112021222 is 22212021122002.

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 20022112021222.

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, 15496990083 + ... + 15496991374.

It is an arithmetic number, because the mean of its divisors is an integer number (2092093748415).

Almost surely, 2^{20022112021222} is an apocalyptic number.

20022112021222 is a deficient number, since it is larger than the sum of its proper divisors (13451387953418).

20022112021222 is a wasteful number, since it uses less digits than its factorization.

20022112021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30993981495.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20022112021222 its reverse (22212021122002), we get a palindrome (42234133143224).

The spelling of 20022112021222 in words is "twenty trillion, twenty-two billion, one hundred twelve million, twenty-one thousand, two hundred twenty-two".