2102121210000 has 200 divisors, whose sum is σ = 7755346544704. Its totient is φ = 480484800000.

The previous prime is 2102121209989. The next prime is 2102121210017. The reversal of 2102121210000 is 121212012.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4795051 + ... + 5215050.

Almost surely, 2^{2102121210000} is an apocalyptic number.

2102121210000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102121210000 is an abundant number, since it is smaller than the sum of its proper divisors (5653225334704).

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

2102121210000 is a wasteful number, since it uses less digits than its factorization.

2102121210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010139 (or 10010118 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2102121210000 its reverse (121212012), we get a palindrome (2102242422012).

The spelling of 2102121210000 in words is "two trillion, one hundred two billion, one hundred twenty-one million, two hundred ten thousand".