2021012222212 has 24 divisors (see below), whose sum is σ = 3776752546560. Its totient is φ = 944188133280.

The previous prime is 2021012222179. The next prime is 2021012222221. The reversal of 2021012222212 is 2122222101202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021012222212.

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, 281004778 + ... + 281011969.

It is an arithmetic number, because the mean of its divisors is an integer number (157364689440).

Almost surely, 2^{2021012222212} is an apocalyptic number.

It is an amenable number.

2021012222212 is a deficient number, since it is larger than the sum of its proper divisors (1755740324348).

2021012222212 is a wasteful number, since it uses less digits than its factorization.

2021012222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562016811 (or 562016809 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2021012222212 its reverse (2122222101202), we get a palindrome (4143234323414).

The spelling of 2021012222212 in words is "two trillion, twenty-one billion, twelve million, two hundred twenty-two thousand, two hundred twelve".