2211122021020 has 48 divisors (see below), whose sum is σ = 5081979627648. Its totient is φ = 801425309760.

The previous prime is 2211122020973. The next prime is 2211122021071. The reversal of 2211122021020 is 201202211122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2211122020985 and 2211122021003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16301442 + ... + 16436521.

It is an arithmetic number, because the mean of its divisors is an integer number (105874575576).

Almost surely, 2^{2211122021020} is an apocalyptic number.

2211122021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211122021020 is an abundant number, since it is smaller than the sum of its proper divisors (2870857606628).

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

2211122021020 is a wasteful number, since it uses less digits than its factorization.

2211122021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32738290 (or 32738288 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2211122021020 its reverse (201202211122), we get a palindrome (2412324232142).

The spelling of 2211122021020 in words is "two trillion, two hundred eleven billion, one hundred twenty-two million, twenty-one thousand, twenty".