2201023122012 has 72 divisors (see below), whose sum is σ = 6536371710960. Its totient is φ = 615670801920.

The previous prime is 2201023121993. The next prime is 2201023122031. The reversal of 2201023122012 is 2102213201022.

2201023122012 is a `hidden beast` number, since 2 + 201 + 0 + 231 + 220 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (2201023121993) and next prime (2201023122031).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213769437 + ... + 213779732.

It is an arithmetic number, because the mean of its divisors is an integer number (90782940430).

Almost surely, 2^{2201023122012} is an apocalyptic number.

2201023122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2201023122012 is an abundant number, since it is smaller than the sum of its proper divisors (4335348588948).

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

2201023122012 is a wasteful number, since it uses less digits than its factorization.

2201023122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427549203 (or 427549198 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2201023122012 its reverse (2102213201022), we get a palindrome (4303236323034).

The spelling of 2201023122012 in words is "two trillion, two hundred one billion, twenty-three million, one hundred twenty-two thousand, twelve".