2211222012102 has 96 divisors (see below), whose sum is σ = 4919606508960. Its totient is φ = 717548751360.

The previous prime is 2211222012101. The next prime is 2211222012107. The reversal of 2211222012102 is 2012102221122.

It is a happy number.

2211222012102 is a `hidden beast` number, since 221 + 12 + 220 + 1 + 210 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211222012101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114047253 + ... + 114066639.

It is an arithmetic number, because the mean of its divisors is an integer number (51245901135).

Almost surely, 2^{2211222012102} is an apocalyptic number.

2211222012102 is an abundant number, since it is smaller than the sum of its proper divisors (2708384496858).

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

2211222012102 is a wasteful number, since it uses less digits than its factorization.

2211222012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20518 (or 20515 counting only the distinct ones).

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

Adding to 2211222012102 its reverse (2012102221122), we get a palindrome (4223324233224).

The spelling of 2211222012102 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, twelve thousand, one hundred two".