1020021021222 has 64 divisors (see below), whose sum is σ = 2337694076928. Its totient is φ = 290657808000.

The previous prime is 1020021021221. The next prime is 1020021021337. The reversal of 1020021021222 is 2221201200201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020021021221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85415772 + ... + 85427712.

It is an arithmetic number, because the mean of its divisors is an integer number (36526469952).

Almost surely, 2^{1020021021222} is an apocalyptic number.

1020021021222 is an abundant number, since it is smaller than the sum of its proper divisors (1317673055706).

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

1020021021222 is a wasteful number, since it uses less digits than its factorization.

1020021021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17205.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1020021021222 its reverse (2221201200201), we get a palindrome (3241222221423).

The spelling of 1020021021222 in words is "one trillion, twenty billion, twenty-one million, twenty-one thousand, two hundred twenty-two".