1220021141115 has 24 divisors (see below), whose sum is σ = 2270733227280. Its totient is φ = 557723949888.

The previous prime is 1220021141107. The next prime is 1220021141123. The reversal of 1220021141115 is 5111411200221.

It is an interprime number because it is at equal distance from previous prime (1220021141107) and next prime (1220021141123).

It is not a de Polignac number, because 1220021141115 - 2³ = 1220021141107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1220021141091 and 1220021141100.

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, 829945620 + ... + 829947089.

It is an arithmetic number, because the mean of its divisors is an integer number (94613884470).

Almost surely, 2^{1220021141115} is an apocalyptic number.

1220021141115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220021141115 is a deficient number, since it is larger than the sum of its proper divisors (1050712086165).

1220021141115 is a wasteful number, since it uses less digits than its factorization.

1220021141115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659892731 (or 1659892724 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 1220021141115 its reverse (5111411200221), we get a palindrome (6331432341336).

The spelling of 1220021141115 in words is "one trillion, two hundred twenty billion, twenty-one million, one hundred forty-one thousand, one hundred fifteen".