20220220102 has 4 divisors (see below), whose sum is σ = 30330330156. Its totient is φ = 10110110050.

The previous prime is 20220220091. The next prime is 20220220117. The reversal of 20220220102 is 20102202202.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055055024 + ... + 5055055027.

It is an arithmetic number, because the mean of its divisors is an integer number (7582582539).

Almost surely, 2^20220220102 is an apocalyptic number.

20220220102 is a deficient number, since it is larger than the sum of its proper divisors (10110110054).

20220220102 is a wasteful number, since it uses less digits than its factorization.

20220220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110110053.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20220220102 its reverse (20102202202), we get a palindrome (40322422304).

It can be divided in two parts, 202202 and 20102, that multiplied together give a palindrome (4064664604).

The spelling of 20220220102 in words is "twenty billion, two hundred twenty million, two hundred twenty thousand, one hundred two".