20220102001021 has 8 divisors (see below), whose sum is σ = 21776849980704. Its totient is φ = 18663547666800.

The previous prime is 20220102001019. The next prime is 20220102001037. The reversal of 20220102001021 is 12010020102202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20220102001021 - 2¹ = 20220102001019 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 20220102000992 and 20220102001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220102001321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48194455 + ... + 48612196.

It is an arithmetic number, because the mean of its divisors is an integer number (2722106247588).

Almost surely, 2^{20220102001021} is an apocalyptic number.

It is an amenable number.

20220102001021 is a deficient number, since it is larger than the sum of its proper divisors (1556747979683).

20220102001021 is a wasteful number, since it uses less digits than its factorization.

20220102001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96822731.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20220102001021 its reverse (12010020102202), we get a palindrome (32230122103223).

The spelling of 20220102001021 in words is "twenty trillion, two hundred twenty billion, one hundred two million, one thousand, twenty-one".