1220111011202 has 4 divisors (see below), whose sum is σ = 1830166516806. Its totient is φ = 610055505600.

The previous prime is 1220111011199. The next prime is 1220111011241. The reversal of 1220111011202 is 2021101110221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1133562666721 + 86548344481 = 1064689^2 + 294191^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305027752799 + ... + 305027752802.

Almost surely, 2^{1220111011202} is an apocalyptic number.

1220111011202 is a deficient number, since it is larger than the sum of its proper divisors (610055505604).

1220111011202 is an equidigital number, since it uses as much as digits as its factorization.

1220111011202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610055505603.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220111011202 its reverse (2021101110221), we get a palindrome (3241212121423).

The spelling of 1220111011202 in words is "one trillion, two hundred twenty billion, one hundred eleven million, eleven thousand, two hundred two".