1222100122210 has 64 divisors (see below), whose sum is σ = 2443552023168. Its totient is φ = 439999560000.

The previous prime is 1222100122193. The next prime is 1222100122241. The reversal of 1222100122210 is 122210012221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 889765 + ... + 1798855.

It is an arithmetic number, because the mean of its divisors is an integer number (38180500362).

Almost surely, 2^{1222100122210} is an apocalyptic number.

1222100122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222100122210 is a deficient number, since it is larger than the sum of its proper divisors (1221451900958).

1222100122210 is a wasteful number, since it uses less digits than its factorization.

1222100122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909232 (or 909210 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222100122210 its reverse (122210012221), we get a palindrome (1344310134431).

The spelling of 1222100122210 in words is "one trillion, two hundred twenty-two billion, one hundred million, one hundred twenty-two thousand, two hundred ten".