621222222126 has 16 divisors (see below), whose sum is σ = 1355393939328. Its totient is φ = 188249158200.

The previous prime is 621222222109. The next prime is 621222222143.

621222222126 is nontrivially palindromic in base 10.

621222222126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (621222222109) and next prime (621222222143).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 621222222093 and 621222222102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706228890 + ... + 4706229021.

It is an arithmetic number, because the mean of its divisors is an integer number (84712121208).

Almost surely, 2^621222222126 is an apocalyptic number.

621222222126 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

621222222126 is an abundant number, since it is smaller than the sum of its proper divisors (734171717202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

621222222126 is a wasteful number, since it uses less digits than its factorization.

621222222126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9412457927.

The product of its digits is 9216, while the sum is 30.

It can be divided in two parts, 621222 and 222126, that added together give a palindrome (843348).

The spelling of 621222222126 in words is "six hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-six".