2121001102000 has 80 divisors (see below), whose sum is σ = 5594815328544. Its totient is φ = 771273120000.

The previous prime is 2121001101949. The next prime is 2121001102043. The reversal of 2121001102000 is 2011001212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48182571 + ... + 48226570.

Almost surely, 2^{2121001102000} is an apocalyptic number.

2121001102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121001102000 is an abundant number, since it is smaller than the sum of its proper divisors (3473814226544).

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

2121001102000 is a wasteful number, since it uses less digits than its factorization.

2121001102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96409175 (or 96409159 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2121001102000 its reverse (2011001212), we get a palindrome (2123012103212).

The spelling of 2121001102000 in words is "two trillion, one hundred twenty-one billion, one million, one hundred two thousand".