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1214553215225 = 52731223880777
BaseRepresentation
bin10001101011001001000…
…000110101000011111001
311022002222022011001011202
4101223021000311003321
5124344401110341400
62325542534303545
7153514521663650
oct21531100650371
94262868131152
101214553215225
114290a8699099
1217747b4b7bb5
138a6bb6c166c
1442adb28a197
15218d76994d5
hex11ac90350f9

1214553215225 has 24 divisors (see below), whose sum is σ = 1776717854208. Its totient is φ = 805970793600.

The previous prime is 1214553215131. The next prime is 1214553215233. The reversal of 1214553215225 is 5225123554121.

It is not a de Polignac number, because 1214553215225 - 28 = 1214553214969 is a prime.

It is a super-2 number, since 2×12145532152252 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111934964 + ... + 111945813.

It is an arithmetic number, because the mean of its divisors is an integer number (74029910592).

Almost surely, 21214553215225 is an apocalyptic number.

It is an amenable number.

1214553215225 is a deficient number, since it is larger than the sum of its proper divisors (562164638983).

1214553215225 is a wasteful number, since it uses less digits than its factorization.

1214553215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223880825 (or 223880820 counting only the distinct ones).

The product of its digits is 120000, while the sum is 38.

Adding to 1214553215225 its reverse (5225123554121), we get a palindrome (6439676769346).

The spelling of 1214553215225 in words is "one trillion, two hundred fourteen billion, five hundred fifty-three million, two hundred fifteen thousand, two hundred twenty-five".

Divisors: 1 5 7 25 31 35 155 175 217 775 1085 5425 223880777 1119403885 1567165439 5597019425 6940304087 7835827195 34701520435 39179135975 48582128609 173507602175 242910643045 1214553215225