1220101042 has 16 divisors (see below), whose sum is σ = 1879944192. Its totient is φ = 593534880.

The previous prime is 1220101037. The next prime is 1220101063. The reversal of 1220101042 is 2401010221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9823 + ... + 50365.

It is an arithmetic number, because the mean of its divisors is an integer number (117496512).

Almost surely, 2^1220101042 is an apocalyptic number.

1220101042 is a deficient number, since it is larger than the sum of its proper divisors (659843150).

1220101042 is a wasteful number, since it uses less digits than its factorization.

1220101042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40953.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1220101042 is about 34929.9447752212. The cubic root of 1220101042 is about 1068.5592283457.

Adding to 1220101042 its reverse (2401010221), we get a palindrome (3621111263).

The spelling of 1220101042 in words is "one billion, two hundred twenty million, one hundred one thousand, forty-two".