101620221051 has 8 divisors (see below), whose sum is σ = 135509055040. Its totient is φ = 67739100552.

The previous prime is 101620221013. The next prime is 101620221107. The reversal of 101620221051 is 150122026101.

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

It is not a de Polignac number, because 101620221051 - 2¹⁴ = 101620204667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101620291051) 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, 1897561 + ... + 1950378.

It is an arithmetic number, because the mean of its divisors is an integer number (16938631880).

Almost surely, 2^101620221051 is an apocalyptic number.

101620221051 is a deficient number, since it is larger than the sum of its proper divisors (33888833989).

101620221051 is an equidigital number, since it uses as much as digits as its factorization.

101620221051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856745.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 101620221051 its reverse (150122026101), we get a palindrome (251742247152).

The spelling of 101620221051 in words is "one hundred one billion, six hundred twenty million, two hundred twenty-one thousand, fifty-one".