2101020022 has 4 divisors (see below), whose sum is σ = 3151530036. Its totient is φ = 1050510010.

The previous prime is 2101019993. The next prime is 2101020023. The reversal of 2101020022 is 2200201012.

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 = 2101019990 and 2101020008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101020023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525255004 + ... + 525255007.

It is an arithmetic number, because the mean of its divisors is an integer number (787882509).

Almost surely, 2^2101020022 is an apocalyptic number.

2101020022 is a deficient number, since it is larger than the sum of its proper divisors (1050510014).

2101020022 is a wasteful number, since it uses less digits than its factorization.

2101020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050510013.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2101020022 is about 45836.8849508777. The cubic root of 2101020022 is about 1280.7864677638.

Adding to 2101020022 its reverse (2200201012), we get a palindrome (4301221034).

The spelling of 2101020022 in words is "two billion, one hundred one million, twenty thousand, twenty-two".