2021002221022 has 4 divisors (see below), whose sum is σ = 3031503331536. Its totient is φ = 1010501110510.

The previous prime is 2021002220989. The next prime is 2021002221037. The reversal of 2021002221022 is 2201222001202.

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 = 2021002220987 and 2021002221005.

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, 505250555254 + ... + 505250555257.

It is an arithmetic number, because the mean of its divisors is an integer number (757875832884).

Almost surely, 2^{2021002221022} is an apocalyptic number.

2021002221022 is a deficient number, since it is larger than the sum of its proper divisors (1010501110514).

2021002221022 is a wasteful number, since it uses less digits than its factorization.

2021002221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010501110513.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2021002221022 its reverse (2201222001202), we get a palindrome (4222224222224).

The spelling of 2021002221022 in words is "two trillion, twenty-one billion, two million, two hundred twenty-one thousand, twenty-two".