1211102002 has 16 divisors (see below), whose sum is σ = 2050142400. Its totient is φ = 531517840.

The previous prime is 1211101999. The next prime is 1211102033. The reversal of 1211102002 is 2002011121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211102002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948502 + ... + 949777.

It is an arithmetic number, because the mean of its divisors is an integer number (128133900).

Almost surely, 2^1211102002 is an apocalyptic number.

1211102002 is a deficient number, since it is larger than the sum of its proper divisors (839040398).

1211102002 is a wasteful number, since it uses less digits than its factorization.

1211102002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898321.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1211102002 is about 34800.8908219316. The cubic root of 1211102002 is about 1065.9256360728.

Adding to 1211102002 its reverse (2002011121), we get a palindrome (3213113123).

The spelling of 1211102002 in words is "one billion, two hundred eleven million, one hundred two thousand, two".