2201102001021 has 32 divisors (see below), whose sum is σ = 3718957971456. Its totient is φ = 1124684856000.

The previous prime is 2201102001017. The next prime is 2201102001031. The reversal of 2201102001021 is 1201002011022.

It is not a de Polignac number, because 2201102001021 - 2² = 2201102001017 is a prime.

It is a super-3 number, since 3×2201102001021³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2201102000988 and 2201102001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201102001031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78089025 + ... + 78117206.

It is an arithmetic number, because the mean of its divisors is an integer number (116217436608).

Almost surely, 2^{2201102001021} is an apocalyptic number.

2201102001021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2201102001021 is a deficient number, since it is larger than the sum of its proper divisors (1517855970435).

2201102001021 is a wasteful number, since it uses less digits than its factorization.

2201102001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156206313.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2201102001021 its reverse (1201002011022), we get a palindrome (3402104012043).

The spelling of 2201102001021 in words is "two trillion, two hundred one billion, one hundred two million, one thousand, twenty-one".