22000001202021 has 16 divisors (see below), whose sum is σ = 29340336552768. Its totient is φ = 14663167008000.

The previous prime is 22000001202019. The next prime is 22000001202031. The reversal of 22000001202021 is 12020210000022.

It is not a de Polignac number, because 22000001202021 - 2¹ = 22000001202019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22000001201988 and 22000001202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000001202031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367120141 + ... + 367180061.

It is an arithmetic number, because the mean of its divisors is an integer number (1833771034548).

Almost surely, 2^{22000001202021} is an apocalyptic number.

It is an amenable number.

22000001202021 is a deficient number, since it is larger than the sum of its proper divisors (7340335350747).

22000001202021 is a wasteful number, since it uses less digits than its factorization.

22000001202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87092.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22000001202021 its reverse (12020210000022), we get a palindrome (34020211202043).

The spelling of 22000001202021 in words is "twenty-two trillion, one million, two hundred two thousand, twenty-one".