1212120200097 has 24 divisors (see below), whose sum is σ = 1864931717376. Its totient is φ = 755991824256.

The previous prime is 1212120200047. The next prime is 1212120200107. The reversal of 1212120200097 is 7900020212121.

It is not a de Polignac number, because 1212120200097 - 2⁸ = 1212120199841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212120200097.

It is not an unprimeable number, because it can be changed into a prime (1212120200047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23694073 + ... + 23745174.

It is an arithmetic number, because the mean of its divisors is an integer number (77705488224).

Almost surely, 2^{1212120200097} is an apocalyptic number.

1212120200097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1212120200097 is a deficient number, since it is larger than the sum of its proper divisors (652811517279).

1212120200097 is a wasteful number, since it uses less digits than its factorization.

1212120200097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47439437 (or 47439434 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 1212120200097 in words is "one trillion, two hundred twelve billion, one hundred twenty million, two hundred thousand, ninety-seven".