20222021202102 has 40 divisors (see below), whose sum is σ = 45314269228800. Its totient is φ = 6740381797776.

The previous prime is 20222021202091. The next prime is 20222021202107. The reversal of 20222021202102 is 20120212022202.

20222021202102 is a `hidden beast` number, since 20 + 2 + 220 + 212 + 0 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222021202107) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1065099 + ... + 6448137.

It is an arithmetic number, because the mean of its divisors is an integer number (1132856730720).

Almost surely, 2^{20222021202102} is an apocalyptic number.

20222021202102 is an abundant number, since it is smaller than the sum of its proper divisors (25092248026698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20222021202102 is a wasteful number, since it uses less digits than its factorization.

20222021202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406242 (or 5406233 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20222021202102 its reverse (20120212022202), we get a palindrome (40342233224304).

The spelling of 20222021202102 in words is "twenty trillion, two hundred twenty-two billion, twenty-one million, two hundred two thousand, one hundred two".