1213220010 has 32 divisors (see below), whose sum is σ = 2990426112. Its totient is φ = 314781120.

The previous prime is 1213220003. The next prime is 1213220027. The reversal of 1213220010 is 100223121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545386 + ... + 547605.

It is an arithmetic number, because the mean of its divisors is an integer number (93450816).

Almost surely, 2^1213220010 is an apocalyptic number.

1213220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213220010 is an abundant number, since it is smaller than the sum of its proper divisors (1777206102).

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

1213220010 is a wasteful number, since it uses less digits than its factorization.

1213220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093038.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1213220010 is about 34831.3078996468. The cubic root of 1213220010 is about 1066.5466474120.

Adding to 1213220010 its reverse (100223121), we get a palindrome (1313443131).

The spelling of 1213220010 in words is "one billion, two hundred thirteen million, two hundred twenty thousand, ten".