202001032121111 has 8 divisors (see below), whose sum is σ = 215959984085664. Its totient is φ = 188272806635520.

The previous prime is 202001032121107. The next prime is 202001032121113. The reversal of 202001032121111 is 111121230100202.

It is a happy number.

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

It is not a de Polignac number, because 202001032121111 - 2² = 202001032121107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202001032121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001032121113) 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, 57681617930 + ... + 57681621431.

It is an arithmetic number, because the mean of its divisors is an integer number (26994998010708).

Almost surely, 2^{202001032121111} is an apocalyptic number.

202001032121111 is a deficient number, since it is larger than the sum of its proper divisors (13958951964553).

202001032121111 is a wasteful number, since it uses less digits than its factorization.

202001032121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115363239481.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 202001032121111 its reverse (111121230100202), we get a palindrome (313122262221313).

The spelling of 202001032121111 in words is "two hundred two trillion, one billion, thirty-two million, one hundred twenty-one thousand, one hundred eleven".