1212221000102 has 32 divisors (see below), whose sum is σ = 2169745228800. Its totient is φ = 496637352288.

The previous prime is 1212221000077. The next prime is 1212221000117. The reversal of 1212221000102 is 2010001222121.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 590402 + ... + 1665237.

It is an arithmetic number, because the mean of its divisors is an integer number (67804538400).

Almost surely, 2^{1212221000102} is an apocalyptic number.

1212221000102 is a deficient number, since it is larger than the sum of its proper divisors (957524228698).

1212221000102 is a wasteful number, since it uses less digits than its factorization.

1212221000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257340.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1212221000102 its reverse (2010001222121), we get a palindrome (3222222222223).

The spelling of 1212221000102 in words is "one trillion, two hundred twelve billion, two hundred twenty-one million, one hundred two", and thus it is an aban number.