22121111220101 has 8 divisors (see below), whose sum is σ = 22136778750720. Its totient is φ = 22105444755888.

The previous prime is 22121111220071. The next prime is 22121111220107. The reversal of 22121111220101 is 10102211112122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121111220101 is a prime.

It is a super-2 number, since 2×22121111220101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22121111220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121111220107) 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, 43807280 + ... + 44309366.

It is an arithmetic number, because the mean of its divisors is an integer number (2767097343840).

Almost surely, 2^{22121111220101} is an apocalyptic number.

It is an amenable number.

22121111220101 is a deficient number, since it is larger than the sum of its proper divisors (15667530619).

22121111220101 is a wasteful number, since it uses less digits than its factorization.

22121111220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533203.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22121111220101 its reverse (10102211112122), we get a palindrome (32223322332223).

The spelling of 22121111220101 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand, one hundred one".