2221210122020 has 48 divisors (see below), whose sum is σ = 4822865983488. Its totient is φ = 858420478080.

The previous prime is 2221210121993. The next prime is 2221210122049. The reversal of 2221210122020 is 202210121222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221210122020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2542124 + ... + 3302243.

It is an arithmetic number, because the mean of its divisors is an integer number (100476374656).

Almost surely, 2^{2221210122020} is an apocalyptic number.

2221210122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221210122020 is an abundant number, since it is smaller than the sum of its proper divisors (2601655861468).

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

2221210122020 is a wasteful number, since it uses less digits than its factorization.

2221210122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845020 (or 5845018 counting only the distinct ones).

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

Adding to 2221210122020 its reverse (202210121222), we get a palindrome (2423420243242).

The spelling of 2221210122020 in words is "two trillion, two hundred twenty-one billion, two hundred ten million, one hundred twenty-two thousand, twenty".