101022221121 has 4 divisors (see below), whose sum is σ = 134696294832. Its totient is φ = 67348147412.

The previous prime is 101022221119. The next prime is 101022221161. The reversal of 101022221121 is 121122220101.

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 101022221121 - 2¹ = 101022221119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101022221121.

It is not an unprimeable number, because it can be changed into a prime (101022221161) 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, 16837036851 + ... + 16837036856.

It is an arithmetic number, because the mean of its divisors is an integer number (33674073708).

Almost surely, 2^101022221121 is an apocalyptic number.

It is an amenable number.

101022221121 is a deficient number, since it is larger than the sum of its proper divisors (33674073711).

101022221121 is an equidigital number, since it uses as much as digits as its factorization.

101022221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33674073710.

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

Adding to 101022221121 its reverse (121122220101), we get a palindrome (222144441222).

The spelling of 101022221121 in words is "one hundred one billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".