20101220002022 has 4 divisors (see below), whose sum is σ = 30151830003036. Its totient is φ = 10050610001010.

The previous prime is 20101220001937. The next prime is 20101220002037. The reversal of 20101220002022 is 22020002210102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20101220001988 and 20101220002006.

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, 5025305000504 + ... + 5025305000507.

It is an arithmetic number, because the mean of its divisors is an integer number (7537957500759).

Almost surely, 2^{20101220002022} is an apocalyptic number.

20101220002022 is a deficient number, since it is larger than the sum of its proper divisors (10050610001014).

20101220002022 is a wasteful number, since it uses less digits than its factorization.

20101220002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050610001013.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20101220002022 its reverse (22020002210102), we get a palindrome (42121222212124).

The spelling of 20101220002022 in words is "twenty trillion, one hundred one billion, two hundred twenty million, two thousand, twenty-two".