20010221034 has 16 divisors (see below), whose sum is σ = 40168122240. Its totient is φ = 6645460320.

The previous prime is 20010220987. The next prime is 20010221039. The reversal of 20010221034 is 43012201002.

It is not an unprimeable number, because it can be changed into a prime (20010221039) 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, 6151579 + ... + 6154830.

It is an arithmetic number, because the mean of its divisors is an integer number (2510507640).

Almost surely, 2^20010221034 is an apocalyptic number.

20010221034 is an abundant number, since it is smaller than the sum of its proper divisors (20157901206).

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

20010221034 is a wasteful number, since it uses less digits than its factorization.

20010221034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12306685.

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

Adding to 20010221034 its reverse (43012201002), we get a palindrome (63022422036).

The spelling of 20010221034 in words is "twenty billion, ten million, two hundred twenty-one thousand, thirty-four".