21022200120194 has 64 divisors (see below), whose sum is σ = 40648167221760. Its totient is φ = 7925316410880.

The previous prime is 21022200120127. The next prime is 21022200120203. The reversal of 21022200120194 is 49102100222012.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8208587 + ... + 10460654.

It is an arithmetic number, because the mean of its divisors is an integer number (635127612840).

Almost surely, 2^{21022200120194} is an apocalyptic number.

21022200120194 is a deficient number, since it is larger than the sum of its proper divisors (19625967101566).

21022200120194 is a wasteful number, since it uses less digits than its factorization.

21022200120194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18669555.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 21022200120194 in words is "twenty-one trillion, twenty-two billion, two hundred million, one hundred twenty thousand, one hundred ninety-four".