35212221252 has 72 divisors (see below), whose sum is σ = 95991593880. Its totient is φ = 10819146240.

The previous prime is 35212221241. The next prime is 35212221263. The reversal of 35212221252 is 25212221253.

35212221252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (35212221241) and next prime (35212221263).

It can be written as a sum of positive squares in 4 ways, for example, as 1335610116 + 33876611136 = 36546^2 + 184056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278752 + ... + 384872.

Almost surely, 2^35212221252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 35212221252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47995796940).

35212221252 is an abundant number, since it is smaller than the sum of its proper divisors (60779372628).

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

35212221252 is a wasteful number, since it uses less digits than its factorization.

35212221252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106853 (or 106848 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

Subtracting from 35212221252 its reverse (25212221253), we obtain a palindrome (9999999999).

The spelling of 35212221252 in words is "thirty-five billion, two hundred twelve million, two hundred twenty-one thousand, two hundred fifty-two".