101211012021 has 8 divisors (see below), whose sum is σ = 154226304064. Its totient is φ = 57834864000.

The previous prime is 101211011953. The next prime is 101211012037. The reversal of 101211012021 is 120210112101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101211012021 - 2⁷ = 101211011893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101211011988 and 101211012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211012421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409785980 + ... + 2409786021.

It is an arithmetic number, because the mean of its divisors is an integer number (19278288008).

Almost surely, 2^101211012021 is an apocalyptic number.

It is an amenable number.

101211012021 is a deficient number, since it is larger than the sum of its proper divisors (53015292043).

101211012021 is an equidigital number, since it uses as much as digits as its factorization.

101211012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819572011.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101211012021 its reverse (120210112101), we get a palindrome (221421124122).

The spelling of 101211012021 in words is "one hundred one billion, two hundred eleven million, twelve thousand, twenty-one".