1220120353641 has 32 divisors (see below), whose sum is σ = 1877795820288. Its totient is φ = 690250982400.

The previous prime is 1220120353583. The next prime is 1220120353651. The reversal of 1220120353641 is 1463530210221.

It is not a de Polignac number, because 1220120353641 - 2⁶ = 1220120353577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220120353599 and 1220120353608.

It is not an unprimeable number, because it can be changed into a prime (1220120353651) 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, 50537725 + ... + 50561861.

It is an arithmetic number, because the mean of its divisors is an integer number (58681119384).

Almost surely, 2^{1220120353641} is an apocalyptic number.

It is an amenable number.

1220120353641 is a deficient number, since it is larger than the sum of its proper divisors (657675466647).

1220120353641 is a wasteful number, since it uses less digits than its factorization.

1220120353641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48081.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1220120353641 its reverse (1463530210221), we get a palindrome (2683650563862).

The spelling of 1220120353641 in words is "one trillion, two hundred twenty billion, one hundred twenty million, three hundred fifty-three thousand, six hundred forty-one".