220000112122021 has 16 divisors (see below), whose sum is σ = 274298576352768. Its totient is φ = 171420707372400.

The previous prime is 220000112122013. The next prime is 220000112122079. The reversal of 220000112122021 is 120221211000022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220000112122021 - 2³ = 220000112122013 is a prime.

It is a super-2 number, since 2×220000112122021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220000112121986 and 220000112122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220000112123021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64590735 + ... + 67911436.

It is an arithmetic number, because the mean of its divisors is an integer number (17143661022048).

Almost surely, 2^{220000112122021} is an apocalyptic number.

It is an amenable number.

220000112122021 is a deficient number, since it is larger than the sum of its proper divisors (54298464230747).

220000112122021 is a wasteful number, since it uses less digits than its factorization.

220000112122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132523752.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220000112122021 its reverse (120221211000022), we get a palindrome (340221323122043).

The spelling of 220000112122021 in words is "two hundred twenty trillion, one hundred twelve million, one hundred twenty-two thousand, twenty-one".