20212020102 has 16 divisors (see below), whose sum is σ = 40450462272. Its totient is φ = 6732936360.

The previous prime is 20212020091. The next prime is 20212020113. The reversal of 20212020102 is 20102021202.

It is an interprime number because it is at equal distance from previous prime (20212020091) and next prime (20212020113).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090968 + ... + 1109339.

It is an arithmetic number, because the mean of its divisors is an integer number (2528153892).

Almost surely, 2^20212020102 is an apocalyptic number.

20212020102 is an abundant number, since it is smaller than the sum of its proper divisors (20238442170).

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

20212020102 is a wasteful number, since it uses less digits than its factorization.

20212020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201843.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20212020102 its reverse (20102021202), we get a palindrome (40314041304).

It can be divided in two parts, 202120 and 20102, that added together give a palindrome (222222).

The spelling of 20212020102 in words is "twenty billion, two hundred twelve million, twenty thousand, one hundred two".