121950286197 has 16 divisors (see below), whose sum is σ = 167005235712. Its totient is φ = 79098033600.

The previous prime is 121950286187. The next prime is 121950286201. The reversal of 121950286197 is 791682059121.

It is not a de Polignac number, because 121950286197 - 2⁷ = 121950286069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121950286187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3038223 + ... + 3078099.

It is an arithmetic number, because the mean of its divisors is an integer number (10437827232).

Almost surely, 2^121950286197 is an apocalyptic number.

It is an amenable number.

121950286197 is a deficient number, since it is larger than the sum of its proper divisors (45054949515).

121950286197 is a wasteful number, since it uses less digits than its factorization.

121950286197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67468.

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 121950286197 in words is "one hundred twenty-one billion, nine hundred fifty million, two hundred eighty-six thousand, one hundred ninety-seven".