2201220010121 has 4 divisors (see below), whose sum is σ = 2401330920144. Its totient is φ = 2001109100100.

The previous prime is 2201220010039. The next prime is 2201220010127. The reversal of 2201220010121 is 1210100221022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2201220010121 - 2¹⁰ = 2201220009097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201220010096 and 2201220010105.

It is not an unprimeable number, because it can be changed into a prime (2201220010127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100055454995 + ... + 100055455016.

It is an arithmetic number, because the mean of its divisors is an integer number (600332730036).

Almost surely, 2^{2201220010121} is an apocalyptic number.

It is an amenable number.

2201220010121 is a deficient number, since it is larger than the sum of its proper divisors (200110910023).

2201220010121 is a wasteful number, since it uses less digits than its factorization.

2201220010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200110910022.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2201220010121 its reverse (1210100221022), we get a palindrome (3411320231143).

The spelling of 2201220010121 in words is "two trillion, two hundred one billion, two hundred twenty million, ten thousand, one hundred twenty-one".