222222100022101 has 4 divisors (see below), whose sum is σ = 222222295017472. Its totient is φ = 222221905026732.

The previous prime is 222222100021937. The next prime is 222222100022123. The reversal of 222222100022101 is 101220001222222.

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 222222100022101 - 2¹³ = 222222100013909 is a prime.

It is a super-2 number, since 2×222222100022101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222100022191) 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, 95778135 + ... + 98070868.

It is an arithmetic number, because the mean of its divisors is an integer number (55555573754368).

Almost surely, 2^{222222100022101} is an apocalyptic number.

It is an amenable number.

222222100022101 is a deficient number, since it is larger than the sum of its proper divisors (194995371).

222222100022101 is a wasteful number, since it uses less digits than its factorization.

222222100022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194995370.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222222100022101 its reverse (101220001222222), we get a palindrome (323442101244323).

The spelling of 222222100022101 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred million, twenty-two thousand, one hundred one".