10020111121201 has 8 divisors (see below), whose sum is σ = 10187057689704. Its totient is φ = 9853251083520.

The previous prime is 10020111121159. The next prime is 10020111121231. The reversal of 10020111121201 is 10212111102001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 188876290801 + 9831234830400 = 434599^2 + 3135480^2 .

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 10020111121201 - 2¹³ = 10020111113009 is a prime.

It is a super-2 number, since 2×10020111121201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020111121231) 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, 21399160 + ... + 21862393.

It is an arithmetic number, because the mean of its divisors is an integer number (1273382211213).

Almost surely, 2^{10020111121201} is an apocalyptic number.

It is an amenable number.

10020111121201 is a deficient number, since it is larger than the sum of its proper divisors (166946568503).

10020111121201 is an equidigital number, since it uses as much as digits as its factorization.

10020111121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43265411.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10020111121201 its reverse (10212111102001), we get a palindrome (20232222223202).

It can be divided in two parts, 1002011 and 1121201, that added together give a palindrome (2123212).

The spelling of 10020111121201 in words is "ten trillion, twenty billion, one hundred eleven million, one hundred twenty-one thousand, two hundred one".