1222521010 has 32 divisors (see below), whose sum is σ = 2240980992. Its totient is φ = 480103680.

The previous prime is 1222520993. The next prime is 1222521023. The reversal of 1222521010 is 101252221.

It is a happy number.

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, 115855 + ... + 125965.

It is an arithmetic number, because the mean of its divisors is an integer number (70030656).

Almost surely, 2^1222521010 is an apocalyptic number.

1222521010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222521010 is a deficient number, since it is larger than the sum of its proper divisors (1018459982).

1222521010 is a wasteful number, since it uses less digits than its factorization.

1222521010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10338.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1222521010 is about 34964.5679223982. The cubic root of 1222521010 is about 1069.2652276322.

Adding to 1222521010 its reverse (101252221), we get a palindrome (1323773231).

The spelling of 1222521010 in words is "one billion, two hundred twenty-two million, five hundred twenty-one thousand, ten".