2021012202194 has 8 divisors (see below), whose sum is σ = 3031759147980. Its totient is φ = 1010425819536.

The previous prime is 2021012202191. The next prime is 2021012202211. The reversal of 2021012202194 is 4912022101202.

It can be written as a sum of positive squares in 2 ways, for example, as 1481247214225 + 539764987969 = 1217065^2 + 734687^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2021012202191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40109309 + ... + 40159664.

Almost surely, 2^{2021012202194} is an apocalyptic number.

2021012202194 is a deficient number, since it is larger than the sum of its proper divisors (1010746945786).

2021012202194 is a wasteful number, since it uses less digits than its factorization.

2021012202194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80281564.

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

Adding to 2021012202194 its reverse (4912022101202), we get a palindrome (6933034303396).

The spelling of 2021012202194 in words is "two trillion, twenty-one billion, twelve million, two hundred two thousand, one hundred ninety-four".