101021220201 has 32 divisors (see below), whose sum is σ = 148515244416. Its totient is φ = 60569600000.

The previous prime is 101021220199. The next prime is 101021220221. The reversal of 101021220201 is 102022120101.

It is a cyclic number.

It is not a de Polignac number, because 101021220201 - 2¹ = 101021220199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101021220221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4324585 + ... + 4347881.

It is an arithmetic number, because the mean of its divisors is an integer number (4641101388).

Almost surely, 2^101021220201 is an apocalyptic number.

101021220201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101021220201 is a deficient number, since it is larger than the sum of its proper divisors (47494024215).

101021220201 is a wasteful number, since it uses less digits than its factorization.

101021220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24713.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101021220201 its reverse (102022120101), we get a palindrome (203043340302).

The spelling of 101021220201 in words is "one hundred one billion, twenty-one million, two hundred twenty thousand, two hundred one".