20231001221202 has 32 divisors (see below), whose sum is σ = 47323979467200. Its totient is φ = 6388737227424.

The previous prime is 20231001221201. The next prime is 20231001221231. The reversal of 20231001221202 is 20212210013202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20231001221201) 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, 9859161363 + ... + 9859163414.

It is an arithmetic number, because the mean of its divisors is an integer number (1478874358350).

Almost surely, 2^{20231001221202} is an apocalyptic number.

20231001221202 is an abundant number, since it is smaller than the sum of its proper divisors (27092978245998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20231001221202 is a wasteful number, since it uses less digits than its factorization.

20231001221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19718324807 (or 19718324801 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20231001221202 its reverse (20212210013202), we get a palindrome (40443211234404).

The spelling of 20231001221202 in words is "twenty trillion, two hundred thirty-one billion, one million, two hundred twenty-one thousand, two hundred two".