2101010022221 has 8 divisors (see below), whose sum is σ = 2295713704800. Its totient is φ = 1906923468240.

The previous prime is 2101010022217. The next prime is 2101010022239. The reversal of 2101010022221 is 1222200101012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101010022221 - 2² = 2101010022217 is a prime.

It is a super-2 number, since 2×2101010022221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101010022196 and 2101010022205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101010022211) 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, 154275026 + ... + 154288643.

It is an arithmetic number, because the mean of its divisors is an integer number (286964213100).

Almost surely, 2^{2101010022221} is an apocalyptic number.

It is an amenable number.

2101010022221 is a deficient number, since it is larger than the sum of its proper divisors (194703682579).

2101010022221 is a wasteful number, since it uses less digits than its factorization.

2101010022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308564299.

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

Adding to 2101010022221 its reverse (1222200101012), we get a palindrome (3323210123233).

The spelling of 2101010022221 in words is "two trillion, one hundred one billion, ten million, twenty-two thousand, two hundred twenty-one".