101221401201 has 16 divisors (see below), whose sum is σ = 142758957696. Its totient is φ = 63662772096.

The previous prime is 101221401199. The next prime is 101221401251. The reversal of 101221401201 is 102104122101.

It is not a de Polignac number, because 101221401201 - 2¹ = 101221401199 is a prime.

It is a super-2 number, since 2×101221401201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101221401251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10042750 + ... + 10052823.

It is an arithmetic number, because the mean of its divisors is an integer number (8922434856).

Almost surely, 2^101221401201 is an apocalyptic number.

It is an amenable number.

101221401201 is a deficient number, since it is larger than the sum of its proper divisors (41537556495).

101221401201 is a wasteful number, since it uses less digits than its factorization.

101221401201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20095672.

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

Adding to 101221401201 its reverse (102104122101), we get a palindrome (203325523302).

The spelling of 101221401201 in words is "one hundred one billion, two hundred twenty-one million, four hundred one thousand, two hundred one".