2100121220102 has 8 divisors (see below), whose sum is σ = 3153406174776. Its totient is φ = 1048985828512.

The previous prime is 2100121220083. The next prime is 2100121220123. The reversal of 2100121220102 is 2010221210012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537388328 + ... + 537392235.

It is an arithmetic number, because the mean of its divisors is an integer number (394175771847).

Almost surely, 2^{2100121220102} is an apocalyptic number.

2100121220102 is a deficient number, since it is larger than the sum of its proper divisors (1053284954674).

2100121220102 is a wasteful number, since it uses less digits than its factorization.

2100121220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074781542.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100121220102 its reverse (2010221210012), we get a palindrome (4110342430114).

The spelling of 2100121220102 in words is "two trillion, one hundred billion, one hundred twenty-one million, two hundred twenty thousand, one hundred two".