1220880016950 has 48 divisors (see below), whose sum is σ = 3303035395776. Its totient is φ = 295970912800.

The previous prime is 1220880016913. The next prime is 1220880016963. The reversal of 1220880016950 is 596100880221.

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 23 ways as a sum of consecutive naturals, for example, 369961992 + ... + 369965291.

It is an arithmetic number, because the mean of its divisors is an integer number (68813237412).

Almost surely, 2^{1220880016950} is an apocalyptic number.

1220880016950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220880016950 is an abundant number, since it is smaller than the sum of its proper divisors (2082155378826).

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

1220880016950 is a wasteful number, since it uses less digits than its factorization.

1220880016950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739927309 (or 739927304 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 1220880016950 in words is "one trillion, two hundred twenty billion, eight hundred eighty million, sixteen thousand, nine hundred fifty".