2102222001020 has 48 divisors (see below), whose sum is σ = 4470374458368. Its totient is φ = 830324765760.

The previous prime is 2102222001013. The next prime is 2102222001029. The reversal of 2102222001020 is 201002222012.

It is a junction number, because it is equal to n+sod(n) for n = 2102222000986 and 2102222001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102222001029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755636 + ... + 2185275.

It is an arithmetic number, because the mean of its divisors is an integer number (93132801216).

Almost surely, 2^{2102222001020} is an apocalyptic number.

2102222001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102222001020 is an abundant number, since it is smaller than the sum of its proper divisors (2368152457348).

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

2102222001020 is a wasteful number, since it uses less digits than its factorization.

2102222001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941370 (or 2941368 counting only the distinct ones).

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

Adding to 2102222001020 its reverse (201002222012), we get a palindrome (2303224223032).

The spelling of 2102222001020 in words is "two trillion, one hundred two billion, two hundred twenty-two million, one thousand, twenty".