2122021401 has 8 divisors (see below), whose sum is σ = 2841718080. Its totient is φ = 1408502832.

The previous prime is 2122021397. The next prime is 2122021411. The reversal of 2122021401 is 1041202212.

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

It is not a de Polignac number, because 2122021401 - 2² = 2122021397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122021411) 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, 1543725 + ... + 1545098.

It is an arithmetic number, because the mean of its divisors is an integer number (355214760).

Almost surely, 2^2122021401 is an apocalyptic number.

It is an amenable number.

2122021401 is a deficient number, since it is larger than the sum of its proper divisors (719696679).

2122021401 is a wasteful number, since it uses less digits than its factorization.

2122021401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089055.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2122021401 is about 46065.4035150024. The cubic root of 2122021401 is about 1285.0398229368.

Adding to 2122021401 its reverse (1041202212), we get a palindrome (3163223613).

The spelling of 2122021401 in words is "two billion, one hundred twenty-two million, twenty-one thousand, four hundred one".