1211101202102 has 32 divisors (see below), whose sum is σ = 1986097847040. Its totient is φ = 549307694880.

The previous prime is 1211101202083. The next prime is 1211101202119. The reversal of 1211101202102 is 2012021011121.

It is a super-2 number, since 2×1211101202102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 84056183 + ... + 84070589.

It is an arithmetic number, because the mean of its divisors is an integer number (62065557720).

Almost surely, 2^{1211101202102} is an apocalyptic number.

1211101202102 is a deficient number, since it is larger than the sum of its proper divisors (774996644938).

1211101202102 is a wasteful number, since it uses less digits than its factorization.

1211101202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22436.

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

Adding to 1211101202102 its reverse (2012021011121), we get a palindrome (3223122213223).

The spelling of 1211101202102 in words is "one trillion, two hundred eleven billion, one hundred one million, two hundred two thousand, one hundred two".