2021000000098 has 4 divisors (see below), whose sum is σ = 3031500000150. Its totient is φ = 1010500000048.

The previous prime is 2021000000057. The next prime is 2021000000137. The reversal of 2021000000098 is 8900000001202.

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., 1246869256689 + 774130743409 = 1116633^2 + 879847^2 .

It is a super-2 number, since 2×2021000000098² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505250000023 + ... + 505250000026.

Almost surely, 2^{2021000000098} is an apocalyptic number.

2021000000098 is a deficient number, since it is larger than the sum of its proper divisors (1010500000052).

2021000000098 is a wasteful number, since it uses less digits than its factorization.

2021000000098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010500000051.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 2021000000098 in words is "two trillion, twenty-one billion, ninety-eight", and thus it is an aban number and an uban number.