2102122512 has 120 divisors (see below), whose sum is σ = 6733078976. Its totient is φ = 599747328.

The previous prime is 2102122501. The next prime is 2102122523. The reversal of 2102122512 is 2152212012.

It is an interprime number because it is at equal distance from previous prime (2102122501) and next prime (2102122523).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1125003 + ... + 1126869.

Almost surely, 2^2102122512 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 2102122512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3366539488).

2102122512 is an abundant number, since it is smaller than the sum of its proper divisors (4630956464).

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

2102122512 is a wasteful number, since it uses less digits than its factorization.

2102122512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005 (or 2996 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2102122512 is about 45848.9096053548. The cubic root of 2102122512 is about 1281.0104553734.

Adding to 2102122512 its reverse (2152212012), we get a palindrome (4254334524).

The spelling of 2102122512 in words is "two billion, one hundred two million, one hundred twenty-two thousand, five hundred twelve".