102000211222031 has 4 divisors (see below), whose sum is σ = 102082668952632. Its totient is φ = 101917753491432.

The previous prime is 102000211222009. The next prime is 102000211222033. The reversal of 102000211222031 is 130222112000201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102000211222031 is a prime.

It is a super-2 number, since 2×102000211222031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102000211222033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41228863445 + ... + 41228865918.

It is an arithmetic number, because the mean of its divisors is an integer number (25520667238158).

Almost surely, 2^{102000211222031} is an apocalyptic number.

102000211222031 is a deficient number, since it is larger than the sum of its proper divisors (82457730601).

102000211222031 is an equidigital number, since it uses as much as digits as its factorization.

102000211222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82457730600.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102000211222031 its reverse (130222112000201), we get a palindrome (232222323222232).

The spelling of 102000211222031 in words is "one hundred two trillion, two hundred eleven million, two hundred twenty-two thousand, thirty-one".