20212020102001 has 16 divisors (see below), whose sum is σ = 25015306377600. Its totient is φ = 15902587600128.

The previous prime is 20212020101983. The next prime is 20212020102019. The reversal of 20212020102001 is 10020102021202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20212020101983) and next prime (20212020102019).

It is a cyclic number.

It is not a de Polignac number, because 20212020102001 - 2¹⁷ = 20212019970929 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (20212020102401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620403016 + ... + 620435593.

It is an arithmetic number, because the mean of its divisors is an integer number (1563456648600).

Almost surely, 2^{20212020102001} is an apocalyptic number.

It is an amenable number.

20212020102001 is a deficient number, since it is larger than the sum of its proper divisors (4803286275599).

20212020102001 is a wasteful number, since it uses less digits than its factorization.

20212020102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240838808.

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

Adding to 20212020102001 its reverse (10020102021202), we get a palindrome (30232122123203).

The spelling of 20212020102001 in words is "twenty trillion, two hundred twelve billion, twenty million, one hundred two thousand, one".