1212101022000 has 160 divisors (see below), whose sum is σ = 4263069717504. Its totient is φ = 293842656000.

The previous prime is 1212101021983. The next prime is 1212101022031. The reversal of 1212101022000 is 2201012121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9116584 + ... + 9248583.

Almost surely, 2^{1212101022000} is an apocalyptic number.

1212101022000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212101022000 is an abundant number, since it is smaller than the sum of its proper divisors (3050968695504).

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

1212101022000 is a wasteful number, since it uses less digits than its factorization.

1212101022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18365204 (or 18365188 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212101022000 its reverse (2201012121), we get a palindrome (1214302034121).

The spelling of 1212101022000 in words is "one trillion, two hundred twelve billion, one hundred one million, twenty-two thousand".