22101012001220 has 24 divisors (see below), whose sum is σ = 46583387668608. Its totient is φ = 8807783378400.

The previous prime is 22101012001157. The next prime is 22101012001249. The reversal of 22101012001220 is 2210021010122.

It is a junction number, because it is equal to n+sod(n) for n = 22101012001195 and 22101012001204.

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, 2038833326 + ... + 2038844165.

It is an arithmetic number, because the mean of its divisors is an integer number (1940974486192).

Almost surely, 2^{22101012001220} is an apocalyptic number.

22101012001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101012001220 is an abundant number, since it is smaller than the sum of its proper divisors (24482375667388).

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

22101012001220 is a wasteful number, since it uses less digits than its factorization.

22101012001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077677771 (or 4077677769 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22101012001220 its reverse (2210021010122), we get a palindrome (24311033011342).

The spelling of 22101012001220 in words is "twenty-two trillion, one hundred one billion, twelve million, one thousand, two hundred twenty".