20402132201 has 16 divisors (see below), whose sum is σ = 22433381568. Its totient is φ = 18400473600.

The previous prime is 20402132183. The next prime is 20402132251. The reversal of 20402132201 is 10223120402.

It is a cyclic number.

It is not a de Polignac number, because 20402132201 - 2⁶ = 20402132137 is a prime.

It is a super-2 number, since 2×20402132201² (a number of 21 digits) contains 22 as substring.

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 20402132201.

It is not an unprimeable number, because it can be changed into a prime (20402132251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3208241 + ... + 3214593.

It is an arithmetic number, because the mean of its divisors is an integer number (1402086348).

Almost surely, 2^20402132201 is an apocalyptic number.

It is an amenable number.

20402132201 is a deficient number, since it is larger than the sum of its proper divisors (2031249367).

20402132201 is a wasteful number, since it uses less digits than its factorization.

20402132201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20402132201 its reverse (10223120402), we get a palindrome (30625252603).

The spelling of 20402132201 in words is "twenty billion, four hundred two million, one hundred thirty-two thousand, two hundred one".