1220101430042 has 16 divisors (see below), whose sum is σ = 1996762104000. Its totient is φ = 554526978240.

The previous prime is 1220101430039. The next prime is 1220101430059. The reversal of 1220101430042 is 2400341010221.

It is a junction number, because it is equal to n+sod(n) for n = 1220101429996 and 1220101430023.

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, 3035567 + ... + 3413922.

It is an arithmetic number, because the mean of its divisors is an integer number (124797631500).

Almost surely, 2^{1220101430042} is an apocalyptic number.

1220101430042 is a deficient number, since it is larger than the sum of its proper divisors (776660673958).

1220101430042 is a wasteful number, since it uses less digits than its factorization.

1220101430042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6458101.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1220101430042 its reverse (2400341010221), we get a palindrome (3620442440263).

The spelling of 1220101430042 in words is "one trillion, two hundred twenty billion, one hundred one million, four hundred thirty thousand, forty-two".