72020120210111 has 8 divisors (see below), whose sum is σ = 72846834528864. Its totient is φ = 71197768500480.

The previous prime is 72020120210057. The next prime is 72020120210177. The reversal of 72020120210111 is 11101202102027.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72020120210111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72020120210611) 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, 1090619075 + ... + 1090685108.

It is an arithmetic number, because the mean of its divisors is an integer number (9105854316108).

Almost surely, 2^{72020120210111} is an apocalyptic number.

72020120210111 is a deficient number, since it is larger than the sum of its proper divisors (826714318753).

72020120210111 is a wasteful number, since it uses less digits than its factorization.

72020120210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181304561.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 72020120210111 its reverse (11101202102027), we get a palindrome (83121322312138).

The spelling of 72020120210111 in words is "seventy-two trillion, twenty billion, one hundred twenty million, two hundred ten thousand, one hundred eleven".