2200121101221 has 8 divisors (see below), whose sum is σ = 2933505334080. Its totient is φ = 1466742134592.

The previous prime is 2200121101183. The next prime is 2200121101229. The reversal of 2200121101221 is 1221011210022.

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

It is not a de Polignac number, because 2200121101221 - 2⁷ = 2200121101093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2200121101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200121101229) 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, 208516 + ... + 2108013.

It is an arithmetic number, because the mean of its divisors is an integer number (366688166760).

Almost surely, 2^{2200121101221} is an apocalyptic number.

It is an amenable number.

2200121101221 is a deficient number, since it is larger than the sum of its proper divisors (733384232859).

2200121101221 is a wasteful number, since it uses less digits than its factorization.

2200121101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633115.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2200121101221 its reverse (1221011210022), we get a palindrome (3421132311243).

The spelling of 2200121101221 in words is "two trillion, two hundred billion, one hundred twenty-one million, one hundred one thousand, two hundred twenty-one".