10221021200111 has 4 divisors (see below), whose sum is σ = 10822257741312. Its totient is φ = 9619784658912.

The previous prime is 10221021200069. The next prime is 10221021200113. The reversal of 10221021200111 is 11100212012201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10221021200111 - 2²² = 10221017005807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221021200113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300618270575 + ... + 300618270608.

It is an arithmetic number, because the mean of its divisors is an integer number (2705564435328).

Almost surely, 2^{10221021200111} is an apocalyptic number.

10221021200111 is a deficient number, since it is larger than the sum of its proper divisors (601236541201).

10221021200111 is an equidigital number, since it uses as much as digits as its factorization.

10221021200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601236541200.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10221021200111 its reverse (11100212012201), we get a palindrome (21321233212312).

The spelling of 10221021200111 in words is "ten trillion, two hundred twenty-one billion, twenty-one million, two hundred thousand, one hundred eleven".