2000022012121 has 4 divisors (see below), whose sum is σ = 2285739442432. Its totient is φ = 1714304581812.

The previous prime is 2000022012103. The next prime is 2000022012127. The reversal of 2000022012121 is 1212102200002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000022012121 is a prime.

It is a super-3 number, since 3×2000022012121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000022012127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142858715145 + ... + 142858715158.

It is an arithmetic number, because the mean of its divisors is an integer number (571434860608).

Almost surely, 2^{2000022012121} is an apocalyptic number.

It is an amenable number.

2000022012121 is a deficient number, since it is larger than the sum of its proper divisors (285717430311).

2000022012121 is an equidigital number, since it uses as much as digits as its factorization.

2000022012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285717430310.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2000022012121 its reverse (1212102200002), we get a palindrome (3212124212123).

The spelling of 2000022012121 in words is "two trillion, twenty-two million, twelve thousand, one hundred twenty-one".