1221102201230 has 32 divisors (see below), whose sum is σ = 2249190028800. Its totient is φ = 477062665632.

The previous prime is 1221102201227. The next prime is 1221102201247. The reversal of 1221102201230 is 321022011221.

It is a junction number, because it is equal to n+sod(n) for n = 1221102201199 and 1221102201208.

It is a congruent 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, 15836711 + ... + 15913629.

It is an arithmetic number, because the mean of its divisors is an integer number (70287188400).

Almost surely, 2^{1221102201230} is an apocalyptic number.

1221102201230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221102201230 is a deficient number, since it is larger than the sum of its proper divisors (1028087827570).

1221102201230 is a wasteful number, since it uses less digits than its factorization.

1221102201230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113888.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1221102201230 its reverse (321022011221), we get a palindrome (1542124212451).

The spelling of 1221102201230 in words is "one trillion, two hundred twenty-one billion, one hundred two million, two hundred one thousand, two hundred thirty".