20022201101 has 6 divisors (see below), whose sum is σ = 23291131950. Its totient is φ = 17161886616.

The previous prime is 20022201077. The next prime is 20022201139. The reversal of 20022201101 is 10110222002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10100049001 + 9922152100 = 100499^2 + 99610^2 .

It is not a de Polignac number, because 20022201101 - 2²² = 20018006797 is a prime.

It is a super-2 number, since 2×20022201101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022201701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204308126 + ... + 204308223.

It is an arithmetic number, because the mean of its divisors is an integer number (3881855325).

Almost surely, 2^20022201101 is an apocalyptic number.

It is an amenable number.

20022201101 is a deficient number, since it is larger than the sum of its proper divisors (3268930849).

20022201101 is an equidigital number, since it uses as much as digits as its factorization.

20022201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408616363 (or 408616356 counting only the distinct ones).

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

Adding to 20022201101 its reverse (10110222002), we get a palindrome (30132423103).

The spelling of 20022201101 in words is "twenty billion, twenty-two million, two hundred one thousand, one hundred one".