1220402112150 has 96 divisors (see below), whose sum is σ = 3285077741568. Its totient is φ = 298041206400.

The previous prime is 1220402112089. The next prime is 1220402112151. The reversal of 1220402112150 is 512112040221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220402112151) 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, 2216316 + ... + 2711615.

It is an arithmetic number, because the mean of its divisors is an integer number (34219559808).

Almost surely, 2^{1220402112150} is an apocalyptic number.

1220402112150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220402112150 is an abundant number, since it is smaller than the sum of its proper divisors (2064675629418).

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

1220402112150 is a wasteful number, since it uses less digits than its factorization.

1220402112150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928086 (or 4928081 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 1220402112150 its reverse (512112040221), we get a palindrome (1732514152371).

The spelling of 1220402112150 in words is "one trillion, two hundred twenty billion, four hundred two million, one hundred twelve thousand, one hundred fifty".