101021200221021 has 8 divisors (see below), whose sum is σ = 142618165017984. Its totient is φ = 63385851119040.

The previous prime is 101021200221017. The next prime is 101021200221047. The reversal of 101021200221021 is 120122002120101.

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

It is not a de Polignac number, because 101021200221021 - 2² = 101021200221017 is a prime.

It is a super-2 number, since 2×101021200221021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021200221001) 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, 990403923685 + ... + 990403923786.

It is an arithmetic number, because the mean of its divisors is an integer number (17827270627248).

Almost surely, 2^{101021200221021} is an apocalyptic number.

It is an amenable number.

101021200221021 is a deficient number, since it is larger than the sum of its proper divisors (41596964796963).

101021200221021 is a wasteful number, since it uses less digits than its factorization.

101021200221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980807847491.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101021200221021 its reverse (120122002120101), we get a palindrome (221143202341122).

The spelling of 101021200221021 in words is "one hundred one trillion, twenty-one billion, two hundred million, two hundred twenty-one thousand, twenty-one".