1222603527860 has 384 divisors, whose sum is σ = 3311250969600. Its totient is φ = 372094894080.

The previous prime is 1222603527853. The next prime is 1222603527949. The reversal of 1222603527860 is 687253062221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 999675209 + ... + 999676431.

It is an arithmetic number, because the mean of its divisors is an integer number (8623049400).

Almost surely, 2^{1222603527860} is an apocalyptic number.

1222603527860 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 1222603527860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655625484800).

1222603527860 is an abundant number, since it is smaller than the sum of its proper divisors (2088647441740).

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

1222603527860 is a wasteful number, since it uses less digits than its factorization.

1222603527860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011 (or 2009 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 1222603527860 in words is "one trillion, two hundred twenty-two billion, six hundred three million, five hundred twenty-seven thousand, eight hundred sixty".