145221332202210 has 128 divisors (see below), whose sum is σ = 390575565619200. Its totient is φ = 34246346123520.

The previous prime is 145221332202161. The next prime is 145221332202211. The reversal of 145221332202210 is 12202233122541.

It is a happy number.

145221332202210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (145221332202211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55859631 + ... + 58401549.

It is an arithmetic number, because the mean of its divisors is an integer number (3051371606400).

Almost surely, 2^{145221332202210} is an apocalyptic number.

145221332202210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145221332202210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195287782809600).

145221332202210 is an abundant number, since it is smaller than the sum of its proper divisors (245354233416990).

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

145221332202210 is a wasteful number, since it uses less digits than its factorization.

145221332202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546656.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 145221332202210 its reverse (12202233122541), we get a palindrome (157423565324751).

The spelling of 145221332202210 in words is "one hundred forty-five trillion, two hundred twenty-one billion, three hundred thirty-two million, two hundred two thousand, two hundred ten".