102032220021 has 8 divisors (see below), whose sum is σ = 136123039200. Its totient is φ = 67981440432.

The previous prime is 102032220007. The next prime is 102032220091. The reversal of 102032220021 is 120022230201.

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 102032220021 - 2²⁵ = 101998665589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102032220001) 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, 10003950 + ... + 10014143.

It is an arithmetic number, because the mean of its divisors is an integer number (17015379900).

Almost surely, 2^102032220021 is an apocalyptic number.

It is an amenable number.

102032220021 is a deficient number, since it is larger than the sum of its proper divisors (34090819179).

102032220021 is a wasteful number, since it uses less digits than its factorization.

102032220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20019795.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 102032220021 its reverse (120022230201), we get a palindrome (222054450222).

The spelling of 102032220021 in words is "one hundred two billion, thirty-two million, two hundred twenty thousand, twenty-one".