1221002230010 has 32 divisors (see below), whose sum is σ = 2286019321344. Its totient is φ = 469038024000.

The previous prime is 1221002229991. The next prime is 1221002230039. The reversal of 1221002230010 is 100322001221.

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, 14992661 + ... + 15073880.

It is an arithmetic number, because the mean of its divisors is an integer number (71438103792).

Almost surely, 2^{1221002230010} is an apocalyptic number.

1221002230010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221002230010 is a deficient number, since it is larger than the sum of its proper divisors (1065017091334).

1221002230010 is a wasteful number, since it uses less digits than its factorization.

1221002230010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30066710.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1221002230010 its reverse (100322001221), we get a palindrome (1321324231231).

The spelling of 1221002230010 in words is "one trillion, two hundred twenty-one billion, two million, two hundred thirty thousand, ten".