2012222323021 has 4 divisors (see below), whose sum is σ = 2031028139232. Its totient is φ = 1993416506812.

The previous prime is 2012222323003. The next prime is 2012222323031. The reversal of 2012222323021 is 1203232222102.

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-2012222323021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012222322983 and 2012222323001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012222323031) 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, 9402907945 + ... + 9402908158.

It is an arithmetic number, because the mean of its divisors is an integer number (507757034808).

Almost surely, 2^{2012222323021} is an apocalyptic number.

It is an amenable number.

2012222323021 is a deficient number, since it is larger than the sum of its proper divisors (18805816211).

2012222323021 is a wasteful number, since it uses less digits than its factorization.

2012222323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18805816210.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2012222323021 its reverse (1203232222102), we get a palindrome (3215454545123).

The spelling of 2012222323021 in words is "two trillion, twelve billion, two hundred twenty-two million, three hundred twenty-three thousand, twenty-one".