2121020112194 has 16 divisors (see below), whose sum is σ = 3182674809600. Its totient is φ = 1060128584544.

The previous prime is 2121020112191. The next prime is 2121020112209. The reversal of 2121020112194 is 4912110201212.

It is not an unprimeable number, because it can be changed into a prime (2121020112191) 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, 90564374 + ... + 90587790.

It is an arithmetic number, because the mean of its divisors is an integer number (198917175600).

Almost surely, 2^{2121020112194} is an apocalyptic number.

2121020112194 is a deficient number, since it is larger than the sum of its proper divisors (1061654697406).

2121020112194 is a wasteful number, since it uses less digits than its factorization.

2121020112194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37777.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 2121020112194 in words is "two trillion, one hundred twenty-one billion, twenty million, one hundred twelve thousand, one hundred ninety-four".