2123220222212 has 24 divisors (see below), whose sum is σ = 3966282411840. Its totient is φ = 991570597920.

The previous prime is 2123220222203. The next prime is 2123220222223. The reversal of 2123220222212 is 2122220223212.

It is a super-2 number, since 2×2123220222212² (a number of 25 digits) contains 22 as substring.

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, 196734803 + ... + 196745594.

It is an arithmetic number, because the mean of its divisors is an integer number (165261767160).

Almost surely, 2^{2123220222212} is an apocalyptic number.

It is an amenable number.

2123220222212 is a deficient number, since it is larger than the sum of its proper divisors (1843062189628).

2123220222212 is a wasteful number, since it uses less digits than its factorization.

2123220222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393480491 (or 393480489 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2123220222212 its reverse (2122220223212), we get a palindrome (4245440445424).

It can be divided in two parts, 2123220 and 222212, that added together give a palindrome (2345432).

The spelling of 2123220222212 in words is "two trillion, one hundred twenty-three billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twelve".