2021222112212 has 24 divisors (see below), whose sum is σ = 3584322255360. Its totient is φ = 997147251360.

The previous prime is 2021222112197. The next prime is 2021222112251. The reversal of 2021222112212 is 2122112221202.

It is a congruent number.

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, 1680839 + ... + 2620622.

It is an arithmetic number, because the mean of its divisors is an integer number (149346760640).

Almost surely, 2^{2021222112212} is an apocalyptic number.

It is an amenable number.

2021222112212 is a deficient number, since it is larger than the sum of its proper divisors (1563100143148).

2021222112212 is a wasteful number, since it uses less digits than its factorization.

2021222112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303031 (or 4303029 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2021222112212 its reverse (2122112221202), we get a palindrome (4143334333414).

The spelling of 2021222112212 in words is "two trillion, twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twelve".