1002211122210 has 64 divisors (see below), whose sum is σ = 2469823349760. Its totient is φ = 260175741120.

The previous prime is 1002211122179. The next prime is 1002211122229. The reversal of 1002211122210 is 122211122001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1002211122210.

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, 2566336 + ... + 2930955.

It is an arithmetic number, because the mean of its divisors is an integer number (38590989840).

Almost surely, 2^{1002211122210} is an apocalyptic number.

1002211122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002211122210 is an abundant number, since it is smaller than the sum of its proper divisors (1467612227550).

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

1002211122210 is a wasteful number, since it uses less digits than its factorization.

1002211122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497463.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1002211122210 its reverse (122211122001), we get a palindrome (1124422244211).

The spelling of 1002211122210 in words is "one trillion, two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred ten".