101021211020099 has 24 divisors (see below), whose sum is σ = 102931459665840. Its totient is φ = 99145644312960.

The previous prime is 101021211020087. The next prime is 101021211020131. The reversal of 101021211020099 is 990020112120101.

It is not a de Polignac number, because 101021211020099 - 2⁴ = 101021211020083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101021211020069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5809480697 + ... + 5809498085.

It is an arithmetic number, because the mean of its divisors is an integer number (4288810819410).

Almost surely, 2^{101021211020099} is an apocalyptic number.

101021211020099 is a deficient number, since it is larger than the sum of its proper divisors (1910248645741).

101021211020099 is an equidigital number, since it uses as much as digits as its factorization.

101021211020099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20871 (or 20810 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 101021211020099 in words is "one hundred one trillion, twenty-one billion, two hundred eleven million, twenty thousand, ninety-nine".