20021101001122 has 8 divisors (see below), whose sum is σ = 32341778540316. Its totient is φ = 9240508154352.

The previous prime is 20021101001029. The next prime is 20021101001189. The reversal of 20021101001122 is 22110010112002.

It can be written as a sum of positive squares in 2 ways, for example, as 17723266429801 + 2297834571321 = 4209901^2 + 1515861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385021173073 + ... + 385021173124.

Almost surely, 2^{20021101001122} is an apocalyptic number.

20021101001122 is a deficient number, since it is larger than the sum of its proper divisors (12320677539194).

20021101001122 is a wasteful number, since it uses less digits than its factorization.

20021101001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770042346212.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20021101001122 its reverse (22110010112002), we get a palindrome (42131111113124).

The spelling of 20021101001122 in words is "twenty trillion, twenty-one billion, one hundred one million, one thousand, one hundred twenty-two".