201355114621 has 4 divisors (see below), whose sum is σ = 201356758432. Its totient is φ = 201353470812.

The previous prime is 201355114603. The next prime is 201355114651. The reversal of 201355114621 is 126411553102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 126411553102 = 2 ⋅63205776551.

It is a cyclic number.

It is not a de Polignac number, because 201355114621 - 2⁵ = 201355114589 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 (201355114651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621951 + ... + 888556.

It is an arithmetic number, because the mean of its divisors is an integer number (50339189608).

Almost surely, 2^201355114621 is an apocalyptic number.

It is an amenable number.

201355114621 is a deficient number, since it is larger than the sum of its proper divisors (1643811).

201355114621 is a wasteful number, since it uses less digits than its factorization.

201355114621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643810.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 201355114621 its reverse (126411553102), we get a palindrome (327766667723).

It can be divided in two parts, 20135 and 5114621, that added together give a square (5134756 = 2266²).

The spelling of 201355114621 in words is "two hundred one billion, three hundred fifty-five million, one hundred fourteen thousand, six hundred twenty-one".