10221002111121 has 8 divisors (see below), whose sum is σ = 13636834968000. Its totient is φ = 6809585330832.

The previous prime is 10221002111107. The next prime is 10221002111143. The reversal of 10221002111121 is 12111120012201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10221002111121 - 2⁶ = 10221002111057 is a prime.

It is a super-3 number, since 3×10221002111121³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221002111121.

It is not an unprimeable number, because it can be changed into a prime (10221002111101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104013746 + ... + 1104023003.

It is an arithmetic number, because the mean of its divisors is an integer number (1704604371000).

Almost surely, 2^{10221002111121} is an apocalyptic number.

It is an amenable number.

10221002111121 is a deficient number, since it is larger than the sum of its proper divisors (3415832856879).

10221002111121 is a wasteful number, since it uses less digits than its factorization.

10221002111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208038295.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10221002111121 its reverse (12111120012201), we get a palindrome (22332122123322).

The spelling of 10221002111121 in words is "ten trillion, two hundred twenty-one billion, two million, one hundred eleven thousand, one hundred twenty-one".