1211112220202 has 32 divisors (see below), whose sum is σ = 1925386526592. Its totient is φ = 569385759744.

The previous prime is 1211112220187. The next prime is 1211112220211. The reversal of 1211112220202 is 2020222111121.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279248978 + ... + 279253314.

It is an arithmetic number, because the mean of its divisors is an integer number (60168328956).

Almost surely, 2^{1211112220202} is an apocalyptic number.

1211112220202 is a deficient number, since it is larger than the sum of its proper divisors (714274306390).

1211112220202 is a wasteful number, since it uses less digits than its factorization.

1211112220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10382.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1211112220202 its reverse (2020222111121), we get a palindrome (3231334331323).

The spelling of 1211112220202 in words is "one trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty thousand, two hundred two".