1520212113112 has 192 divisors, whose sum is σ = 3805747545600. Its totient is φ = 555664665600.

The previous prime is 1520212113103. The next prime is 1520212113127. The reversal of 1520212113112 is 2113112120251.

It is a super-2 number, since 2×1520212113112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13203312 + ... + 13317952.

It is an arithmetic number, because the mean of its divisors is an integer number (19821601800).

Almost surely, 2^{1520212113112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520212113112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1902873772800).

1520212113112 is an abundant number, since it is smaller than the sum of its proper divisors (2285535432488).

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

1520212113112 is a wasteful number, since it uses less digits than its factorization.

1520212113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114798 (or 114783 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 1520212113112 its reverse (2113112120251), we get a palindrome (3633324233363).

The spelling of 1520212113112 in words is "one trillion, five hundred twenty billion, two hundred twelve million, one hundred thirteen thousand, one hundred twelve".