2211101220222 has 64 divisors (see below), whose sum is σ = 4933165593600. Its totient is φ = 734097349440.

The previous prime is 2211101220149. The next prime is 2211101220233. The reversal of 2211101220222 is 2220221011122.

It is a happy number.

2211101220222 is a `hidden beast` number, since 2 + 211 + 10 + 1 + 220 + 222 = 666.

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 = 2211101220195 and 2211101220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17005554 + ... + 17135082.

It is an arithmetic number, because the mean of its divisors is an integer number (77080712400).

Almost surely, 2^{2211101220222} is an apocalyptic number.

2211101220222 is an abundant number, since it is smaller than the sum of its proper divisors (2722064373378).

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

2211101220222 is a wasteful number, since it uses less digits than its factorization.

2211101220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130798 (or 130792 counting only the distinct ones).

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

Adding to 2211101220222 its reverse (2220221011122), we get a palindrome (4431322231344).

The spelling of 2211101220222 in words is "two trillion, two hundred eleven billion, one hundred one million, two hundred twenty thousand, two hundred twenty-two".