22021211220201 has 32 divisors (see below), whose sum is σ = 33186007536000. Its totient is φ = 14428047193344.

The previous prime is 22021211220101. The next prime is 22021211220209. The reversal of 22021211220201 is 10202211212022.

It is a happy number.

22021211220201 is a `hidden beast` number, since 2 + 20 + 212 + 11 + 220 + 201 = 666.

It is not a de Polignac number, because 22021211220201 - 2²⁷ = 22021077002473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22021211220209) 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, 3969285 + ... + 7732893.

It is an arithmetic number, because the mean of its divisors is an integer number (1037062735500).

Almost surely, 2^{22021211220201} is an apocalyptic number.

It is an amenable number.

22021211220201 is a deficient number, since it is larger than the sum of its proper divisors (11164796315799).

22021211220201 is a wasteful number, since it uses less digits than its factorization.

22021211220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767350 (or 3767344 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22021211220201 its reverse (10202211212022), we get a palindrome (32223422432223).

The spelling of 22021211220201 in words is "twenty-two trillion, twenty-one billion, two hundred eleven million, two hundred twenty thousand, two hundred one".