20112022001 has 4 divisors (see below), whose sum is σ = 20319362532. Its totient is φ = 19904681472.

The previous prime is 20112021983. The next prime is 20112022013. The reversal of 20112022001 is 10022021102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6488463601 + 13623558400 = 80551^2 + 116720^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112022001 - 2²⁶ = 20044913137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112012001) 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, 103670120 + ... + 103670313.

It is an arithmetic number, because the mean of its divisors is an integer number (5079840633).

Almost surely, 2^20112022001 is an apocalyptic number.

It is an amenable number.

20112022001 is a deficient number, since it is larger than the sum of its proper divisors (207340531).

20112022001 is an equidigital number, since it uses as much as digits as its factorization.

20112022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207340530.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20112022001 its reverse (10022021102), we get a palindrome (30134043103).

The spelling of 20112022001 in words is "twenty billion, one hundred twelve million, twenty-two thousand, one".