1221035103435 has 32 divisors (see below), whose sum is σ = 2233319800320. Its totient is φ = 558045001728.

The previous prime is 1221035103419. The next prime is 1221035103439. The reversal of 1221035103435 is 5343015301221.

It is not a de Polignac number, because 1221035103435 - 2⁴ = 1221035103419 is a prime.

It is a super-2 number, since 2×1221035103435² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1221035103439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1070230 + ... + 1894059.

It is an arithmetic number, because the mean of its divisors is an integer number (69791243760).

Almost surely, 2^{1221035103435} is an apocalyptic number.

1221035103435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1221035103435 is a deficient number, since it is larger than the sum of its proper divisors (1012284696885).

1221035103435 is a wasteful number, since it uses less digits than its factorization.

1221035103435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968227.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 1221035103435 in words is "one trillion, two hundred twenty-one billion, thirty-five million, one hundred three thousand, four hundred thirty-five".