1221101301202 has 24 divisors (see below), whose sum is σ = 1950586655220. Its totient is φ = 573202790400.

The previous prime is 1221101301191. The next prime is 1221101301239. The reversal of 1221101301202 is 2021031011221.

It can be written as a sum of positive squares in 6 ways, for example, as 1151009268201 + 70092033001 = 1072851^2 + 264749^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2402427 + ... + 2865982.

Almost surely, 2^{1221101301202} is an apocalyptic number.

1221101301202 is a deficient number, since it is larger than the sum of its proper divisors (729485354018).

1221101301202 is a wasteful number, since it uses less digits than its factorization.

1221101301202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268846 (or 5268829 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1221101301202 its reverse (2021031011221), we get a palindrome (3242132312423).

The spelling of 1221101301202 in words is "one trillion, two hundred twenty-one billion, one hundred one million, three hundred one thousand, two hundred two".