2121120100010 has 16 divisors (see below), whose sum is σ = 3820893382656. Its totient is φ = 847808661648.

The previous prime is 2121120099991. The next prime is 2121120100037. The reversal of 2121120100010 is 100010211212.

It is a junction number, because it is equal to n+sod(n) for n = 2121120099964 and 2121120100000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79908362 + ... + 79934901.

It is an arithmetic number, because the mean of its divisors is an integer number (238805836416).

Almost surely, 2^{2121120100010} is an apocalyptic number.

2121120100010 is a deficient number, since it is larger than the sum of its proper divisors (1699773282646).

2121120100010 is a wasteful number, since it uses less digits than its factorization.

2121120100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159844597.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2121120100010 its reverse (100010211212), we get a palindrome (2221130311222).

The spelling of 2121120100010 in words is "two trillion, one hundred twenty-one billion, one hundred twenty million, one hundred thousand, ten".