2100021210122 has 8 divisors (see below), whose sum is σ = 3436398343872. Its totient is φ = 954555095500.

The previous prime is 2100021210107. The next prime is 2100021210149. The reversal of 2100021210122 is 2210121200012.

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

It is a junction number, because it is equal to n+sod(n) for n = 2100021210097 and 2100021210106.

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, 47727754754 + ... + 47727754797.

It is an arithmetic number, because the mean of its divisors is an integer number (429549792984).

Almost surely, 2^{2100021210122} is an apocalyptic number.

2100021210122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2100021210122 is a deficient number, since it is larger than the sum of its proper divisors (1336377133750).

2100021210122 is a wasteful number, since it uses less digits than its factorization.

2100021210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95455509564.

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

Adding to 2100021210122 its reverse (2210121200012), we get a palindrome (4310142410134).

The spelling of 2100021210122 in words is "two trillion, one hundred billion, twenty-one million, two hundred ten thousand, one hundred twenty-two".