2221312122210 has 32 divisors (see below), whose sum is σ = 5332260326400. Its totient is φ = 592226428928.

The previous prime is 2221312122181. The next prime is 2221312122217. The reversal of 2221312122210 is 122212131222.

It is not an unprimeable number, because it can be changed into a prime (2221312122217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7570527 + ... + 7858466.

It is an arithmetic number, because the mean of its divisors is an integer number (166633135200).

Almost surely, 2^{2221312122210} is an apocalyptic number.

2221312122210 is an abundant number, since it is smaller than the sum of its proper divisors (3110948204190).

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

2221312122210 is a wasteful number, since it uses less digits than its factorization.

2221312122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15433802.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2221312122210 its reverse (122212131222), we get a palindrome (2343524253432).

The spelling of 2221312122210 in words is "two trillion, two hundred twenty-one billion, three hundred twelve million, one hundred twenty-two thousand, two hundred ten".