1012220501 has 16 divisors (see below), whose sum is σ = 1065996288. Its totient is φ = 959310000.

The previous prime is 1012220483. The next prime is 1012220509. The reversal of 1012220501 is 1050222101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012220501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012220509) 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, 1564160 + ... + 1564806.

It is an arithmetic number, because the mean of its divisors is an integer number (66624768).

Almost surely, 2^1012220501 is an apocalyptic number.

It is an amenable number.

1012220501 is a deficient number, since it is larger than the sum of its proper divisors (53775787).

1012220501 is a wasteful number, since it uses less digits than its factorization.

1012220501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1012220501 is about 31815.4129471865. The cubic root of 1012220501 is about 1004.0570186741.

Adding to 1012220501 its reverse (1050222101), we get a palindrome (2062442602).

The spelling of 1012220501 in words is "one billion, twelve million, two hundred twenty thousand, five hundred one".