2231000022120 has 128 divisors (see below), whose sum is σ = 6871341248640. Its totient is φ = 579252177920.

The previous prime is 2231000022107. The next prime is 2231000022127. The reversal of 2231000022120 is 212200001322.

It is a happy number.

It is a super-3 number, since 3×2231000022120³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2231000022120.

It is not an unprimeable number, because it can be changed into a prime (2231000022127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505719 + ... + 2172038.

It is an arithmetic number, because the mean of its divisors is an integer number (53682353505).

Almost surely, 2^{2231000022120} is an apocalyptic number.

2231000022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231000022120 is an abundant number, since it is smaller than the sum of its proper divisors (4640341226520).

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

2231000022120 is a wasteful number, since it uses less digits than its factorization.

2231000022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677955 (or 2677951 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 2231000022120 its reverse (212200001322), we get a palindrome (2443200023442).

The spelling of 2231000022120 in words is "two trillion, two hundred thirty-one billion, twenty-two thousand, one hundred twenty".