2200022120021 has 4 divisors (see below), whose sum is σ = 2400024130944. Its totient is φ = 2000020109100.

The previous prime is 2200022120017. The next prime is 2200022120033. The reversal of 2200022120021 is 1200212200022.

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 a cyclic number.

It is not a de Polignac number, because 2200022120021 - 2² = 2200022120017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2200022119978 and 2200022120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200022126021) 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, 100001005445 + ... + 100001005466.

It is an arithmetic number, because the mean of its divisors is an integer number (600006032736).

Almost surely, 2^{2200022120021} is an apocalyptic number.

It is an amenable number.

2200022120021 is a deficient number, since it is larger than the sum of its proper divisors (200002010923).

2200022120021 is a wasteful number, since it uses less digits than its factorization.

2200022120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200002010922.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2200022120021 its reverse (1200212200022), we get a palindrome (3400234320043).

It can be divided in two parts, 2200022 and 120021, that multiplied together give a palindrome (264048840462).

The spelling of 2200022120021 in words is "two trillion, two hundred billion, twenty-two million, one hundred twenty thousand, twenty-one".