1111211220102 has 16 divisors (see below), whose sum is σ = 2339392042560. Its totient is φ = 350908806312.

The previous prime is 1111211220089. The next prime is 1111211220131. The reversal of 1111211220102 is 2010221121111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4873733308 + ... + 4873733535.

It is an arithmetic number, because the mean of its divisors is an integer number (146212002660).

Almost surely, 2^{1111211220102} is an apocalyptic number.

1111211220102 is an abundant number, since it is smaller than the sum of its proper divisors (1228180822458).

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

1111211220102 is a wasteful number, since it uses less digits than its factorization.

1111211220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9747466867.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1111211220102 its reverse (2010221121111), we get a palindrome (3121432341213).

The spelling of 1111211220102 in words is "one trillion, one hundred eleven billion, two hundred eleven million, two hundred twenty thousand, one hundred two".