2021221022194 has 32 divisors (see below), whose sum is σ = 3451731978240. Its totient is φ = 878670262800.

The previous prime is 2021221022167. The next prime is 2021221022201. The reversal of 2021221022194 is 4912201221202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3437047 + ... + 3981925.

It is an arithmetic number, because the mean of its divisors is an integer number (107866624320).

Almost surely, 2^{2021221022194} is an apocalyptic number.

2021221022194 is a deficient number, since it is larger than the sum of its proper divisors (1430510956046).

2021221022194 is a wasteful number, since it uses less digits than its factorization.

2021221022194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552246.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 2021221022194 its reverse (4912201221202), we get a palindrome (6933422243396).

The spelling of 2021221022194 in words is "two trillion, twenty-one billion, two hundred twenty-one million, twenty-two thousand, one hundred ninety-four".