1090919722620 has 192 divisors, whose sum is σ = 3760050954240. Its totient is φ = 230136947712.

The previous prime is 1090919722591. The next prime is 1090919722621. The reversal of 1090919722620 is 262279190901.

It is a self number, because there is not a number n which added to its sum of digits gives 1090919722620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090919722621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52039701 + ... + 52060659.

It is an arithmetic number, because the mean of its divisors is an integer number (19583598720).

Almost surely, 2^{1090919722620} is an apocalyptic number.

1090919722620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1090919722620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880025477120).

1090919722620 is an abundant number, since it is smaller than the sum of its proper divisors (2669131231620).

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

1090919722620 is a wasteful number, since it uses less digits than its factorization.

1090919722620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30524 (or 30522 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 1090919722620 in words is "one trillion, ninety billion, nine hundred nineteen million, seven hundred twenty-two thousand, six hundred twenty".