2202100021221 has 8 divisors (see below), whose sum is σ = 2936140880640. Its totient is φ = 1468062921312.

The previous prime is 2202100021211. The next prime is 2202100021237. The reversal of 2202100021221 is 1221200012022.

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

It is not a de Polignac number, because 2202100021221 - 2¹⁸ = 2202099759077 is a prime.

It is a super-3 number, since 3×2202100021221³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2202100021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202100021211) 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, 997161 + ... + 2323473.

It is an arithmetic number, because the mean of its divisors is an integer number (367017610080).

Almost surely, 2^{2202100021221} is an apocalyptic number.

It is an amenable number.

2202100021221 is a deficient number, since it is larger than the sum of its proper divisors (734040859419).

2202100021221 is a wasteful number, since it uses less digits than its factorization.

2202100021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879755.

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

Adding to 2202100021221 its reverse (1221200012022), we get a palindrome (3423300033243).

The spelling of 2202100021221 in words is "two trillion, two hundred two billion, one hundred million, twenty-one thousand, two hundred twenty-one".