1220511114102 has 32 divisors (see below), whose sum is σ = 2936568096000. Its totient is φ = 330363910368.

The previous prime is 1220511114041. The next prime is 1220511114149. The reversal of 1220511114102 is 2014111150221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 764730477 + ... + 764732072.

It is an arithmetic number, because the mean of its divisors is an integer number (91767753000).

Almost surely, 2^{1220511114102} is an apocalyptic number.

1220511114102 is an abundant number, since it is smaller than the sum of its proper divisors (1716056981898).

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

1220511114102 is a wasteful number, since it uses less digits than its factorization.

1220511114102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529462580.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 1220511114102 its reverse (2014111150221), we get a palindrome (3234622264323).

The spelling of 1220511114102 in words is "one trillion, two hundred twenty billion, five hundred eleven million, one hundred fourteen thousand, one hundred two".