21010122102098 has 32 divisors (see below), whose sum is σ = 31937196146688. Its totient is φ = 10365622390800.

The previous prime is 21010122102097. The next prime is 21010122102133. The reversal of 21010122102098 is 89020122101012.

It is a self number, because there is not a number n which added to its sum of digits gives 21010122102098.

It is not an unprimeable number, because it can be changed into a prime (21010122102097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23052461 + ... + 23946527.

It is an arithmetic number, because the mean of its divisors is an integer number (998037379584).

Almost surely, 2^{21010122102098} is an apocalyptic number.

21010122102098 is a deficient number, since it is larger than the sum of its proper divisors (10927074044590).

21010122102098 is a wasteful number, since it uses less digits than its factorization.

21010122102098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894758.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 21010122102098 in words is "twenty-one trillion, ten billion, one hundred twenty-two million, one hundred two thousand, ninety-eight".