2221211201022 has 48 divisors (see below), whose sum is σ = 5287906391040. Its totient is φ = 668251890000.

The previous prime is 2221211200951. The next prime is 2221211201087. The reversal of 2221211201022 is 2201021121222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2221211200986 and 2221211201004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40325854 + ... + 40380897.

It is an arithmetic number, because the mean of its divisors is an integer number (110164716480).

Almost surely, 2^{2221211201022} is an apocalyptic number.

2221211201022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221211201022 is an abundant number, since it is smaller than the sum of its proper divisors (3066695190018).

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

2221211201022 is a wasteful number, since it uses less digits than its factorization.

2221211201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80706909 (or 80706906 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2221211201022 its reverse (2201021121222), we get a palindrome (4422232322244).

The spelling of 2221211201022 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, two hundred one thousand, twenty-two".