1220011023102 has 32 divisors (see below), whose sum is σ = 2444374671360. Its totient is φ = 405945108000.

The previous prime is 1220011023061. The next prime is 1220011023109. The reversal of 1220011023102 is 2013201100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220011023109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28516227 + ... + 28558977.

It is an arithmetic number, because the mean of its divisors is an integer number (76386708480).

Almost surely, 2^{1220011023102} is an apocalyptic number.

1220011023102 is an abundant number, since it is smaller than the sum of its proper divisors (1224363648258).

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

1220011023102 is a wasteful number, since it uses less digits than its factorization.

1220011023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51128.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1220011023102 its reverse (2013201100221), we get a palindrome (3233212123323).

The spelling of 1220011023102 in words is "one trillion, two hundred twenty billion, eleven million, twenty-three thousand, one hundred two".