101011221220021 has 8 divisors (see below), whose sum is σ = 117164401586240. Its totient is φ = 85288792330368.

The previous prime is 101011221219973. The next prime is 101011221220027. The reversal of 101011221220021 is 120022122110101.

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

It is a cyclic number.

It is not a de Polignac number, because 101011221220021 - 2²³ = 101011212831413 is a prime.

It is a super-3 number, since 3×101011221220021³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101011221219977 and 101011221220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011221220027) 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, 107687868636 + ... + 107687869573.

It is an arithmetic number, because the mean of its divisors is an integer number (14645550198280).

Almost surely, 2^{101011221220021} is an apocalyptic number.

It is an amenable number.

101011221220021 is a deficient number, since it is larger than the sum of its proper divisors (16153180366219).

101011221220021 is an equidigital number, since it uses as much as digits as its factorization.

101011221220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215375738283.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101011221220021 its reverse (120022122110101), we get a palindrome (221033343330122).

The spelling of 101011221220021 in words is "one hundred one trillion, eleven billion, two hundred twenty-one million, two hundred twenty thousand, twenty-one".