10102202011221 has 4 divisors (see below), whose sum is σ = 13469602681632. Its totient is φ = 6734801340812.

The previous prime is 10102202011217. The next prime is 10102202011247. The reversal of 10102202011221 is 12211020220101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10102202011221 - 2² = 10102202011217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10102202011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102202011621) 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, 1683700335201 + ... + 1683700335206.

It is an arithmetic number, because the mean of its divisors is an integer number (3367400670408).

Almost surely, 2^{10102202011221} is an apocalyptic number.

It is an amenable number.

10102202011221 is a deficient number, since it is larger than the sum of its proper divisors (3367400670411).

10102202011221 is an equidigital number, since it uses as much as digits as its factorization.

10102202011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367400670410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10102202011221 its reverse (12211020220101), we get a palindrome (22313222231322).

The spelling of 10102202011221 in words is "ten trillion, one hundred two billion, two hundred two million, eleven thousand, two hundred twenty-one".