1212202100987 has 8 divisors (see below), whose sum is σ = 1215097044480. Its totient is φ = 1209307539880.

The previous prime is 1212202100971. The next prime is 1212202101041. The reversal of 1212202100987 is 7890012022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212202100987 - 2⁴ = 1212202100971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212202700987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6853064 + ... + 7027722.

It is an arithmetic number, because the mean of its divisors is an integer number (151887130560).

Almost surely, 2^{1212202100987} is an apocalyptic number.

1212202100987 is a deficient number, since it is larger than the sum of its proper divisors (2894943493).

1212202100987 is a wasteful number, since it uses less digits than its factorization.

1212202100987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191193.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 1212202100987 in words is "one trillion, two hundred twelve billion, two hundred two million, one hundred thousand, nine hundred eighty-seven".