1212022031 has 6 divisors (see below), whose sum is σ = 1332222696. Its totient is φ = 1101838100.

The previous prime is 1212022013. The next prime is 1212022111. The reversal of 1212022031 is 1302202121.

It is a happy number.

It is not a de Polignac number, because 1212022031 - 2¹⁴ = 1212005647 is a prime.

It is a super-2 number, since 2×1212022031² = 2937994807258729922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212021997 and 1212022015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212022001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5008235 + ... + 5008476.

It is an arithmetic number, because the mean of its divisors is an integer number (222037116).

Almost surely, 2^1212022031 is an apocalyptic number.

1212022031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212022031 is a deficient number, since it is larger than the sum of its proper divisors (120200665).

1212022031 is a wasteful number, since it uses less digits than its factorization.

1212022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016733 (or 10016722 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1212022031 is about 34814.1067815907. The cubic root of 1212022031 is about 1066.1954823976.

Adding to 1212022031 its reverse (1302202121), we get a palindrome (2514224152).

The spelling of 1212022031 in words is "one billion, two hundred twelve million, twenty-two thousand, thirty-one".