2021210221022 has 4 divisors (see below), whose sum is σ = 3031815331536. Its totient is φ = 1010605110510.

The previous prime is 2021210221013. The next prime is 2021210221039. The reversal of 2021210221022 is 2201220121202.

It is a happy number.

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

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, 505302555254 + ... + 505302555257.

It is an arithmetic number, because the mean of its divisors is an integer number (757953832884).

Almost surely, 2^{2021210221022} is an apocalyptic number.

2021210221022 is a deficient number, since it is larger than the sum of its proper divisors (1010605110514).

2021210221022 is a wasteful number, since it uses less digits than its factorization.

2021210221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010605110513.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2021210221022 its reverse (2201220121202), we get a palindrome (4222430342224).

The spelling of 2021210221022 in words is "two trillion, twenty-one billion, two hundred ten million, two hundred twenty-one thousand, twenty-two".