10221222111020 has 48 divisors (see below), whose sum is σ = 21479141065536. Its totient is φ = 4085713632000.

The previous prime is 10221222110951. The next prime is 10221222111047. The reversal of 10221222111020 is 2011122212201.

It is a self number, because there is not a number n which added to its sum of digits gives 10221222111020.

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, 204313610 + ... + 204363630.

It is an arithmetic number, because the mean of its divisors is an integer number (447482105532).

Almost surely, 2^{10221222111020} is an apocalyptic number.

10221222111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221222111020 is an abundant number, since it is smaller than the sum of its proper divisors (11257918954516).

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

10221222111020 is a wasteful number, since it uses less digits than its factorization.

10221222111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56762 (or 56760 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10221222111020 its reverse (2011122212201), we get a palindrome (12232344323221).

The spelling of 10221222111020 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred eleven thousand, twenty".