20022102010020 has 96 divisors (see below), whose sum is σ = 61160494469760. Its totient is φ = 4853678325760.

The previous prime is 20022102010013. The next prime is 20022102010049. The reversal of 20022102010020 is 2001020122002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20022102009978 and 20022102010005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19557604 + ... + 20555876.

It is an arithmetic number, because the mean of its divisors is an integer number (637088484060).

Almost surely, 2^{20022102010020} is an apocalyptic number.

20022102010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022102010020 is an abundant number, since it is smaller than the sum of its proper divisors (41138392459740).

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

20022102010020 is a wasteful number, since it uses less digits than its factorization.

20022102010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028685 (or 1028683 counting only the distinct ones).

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

Adding to 20022102010020 its reverse (2001020122002), we get a palindrome (22023122132022).

The spelling of 20022102010020 in words is "twenty trillion, twenty-two billion, one hundred two million, ten thousand, twenty".