1020211101099 has 28 divisors (see below), whose sum is σ = 1529749456656. Its totient is φ = 680081802192.

The previous prime is 1020211101083. The next prime is 1020211101101. The reversal of 1020211101099 is 9901011120201.

It is not a de Polignac number, because 1020211101099 - 2⁴ = 1020211101083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1020211108099) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9362322 + ... + 9470664.

Almost surely, 2^{1020211101099} is an apocalyptic number.

1020211101099 is a deficient number, since it is larger than the sum of its proper divisors (509538355557).

1020211101099 is an equidigital number, since it uses as much as digits as its factorization.

1020211101099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121278 (or 121263 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 1020211101099 in words is "one trillion, twenty billion, two hundred eleven million, one hundred one thousand, ninety-nine".