2210222121212 has 24 divisors (see below), whose sum is σ = 4420512912480. Its totient is φ = 947223336960.

The previous prime is 2210222121157. The next prime is 2210222121293. The reversal of 2210222121212 is 2121212220122.

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, 1329464 + ... + 2487552.

It is an arithmetic number, because the mean of its divisors is an integer number (184188038020).

Almost surely, 2^{2210222121212} is an apocalyptic number.

It is an amenable number.

2210222121212 is an abundant number, since it is smaller than the sum of its proper divisors (2210290791268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2210222121212 is a wasteful number, since it uses less digits than its factorization.

2210222121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226261 (or 1226259 counting only the distinct ones).

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

Adding to 2210222121212 its reverse (2121212220122), we get a palindrome (4331434341334).

The spelling of 2210222121212 in words is "two trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twelve".