2101220220098 has 4 divisors (see below), whose sum is σ = 3151830330150. Its totient is φ = 1050610110048.

The previous prime is 2101220220097. The next prime is 2101220220193. The reversal of 2101220220098 is 8900220221012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1630312724569 + 470907495529 = 1276837^2 + 686227^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2101220220098.

It is not an unprimeable number, because it can be changed into a prime (2101220220091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525305055023 + ... + 525305055026.

Almost surely, 2^{2101220220098} is an apocalyptic number.

2101220220098 is a deficient number, since it is larger than the sum of its proper divisors (1050610110052).

2101220220098 is a wasteful number, since it uses less digits than its factorization.

2101220220098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050610110051.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 2101220220098 in words is "two trillion, one hundred one billion, two hundred twenty million, two hundred twenty thousand, ninety-eight".